1049371380 has 144 divisors (see below), whose sum is σ = 3355868880. Its totient is φ = 265015296.

The previous prime is 1049371369. The next prime is 1049371391. The reversal of 1049371380 is 831739401.

It is a happy number.

1049371380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1049371369) and next prime (1049371391).

It can be written as a sum of positive squares in 8 ways, for example, as 14333796 + 1035037584 = 3786^2 + 32172^2 .

It is a super-2 number, since 2×1049371380² = 2202360586326208800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 274764 + ... + 278556.

It is an arithmetic number, because the mean of its divisors is an integer number (23304645).

Almost surely, 2^1049371380 is an apocalyptic number.

1049371380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1049371380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1677934440).

1049371380 is an abundant number, since it is smaller than the sum of its proper divisors (2306497500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1049371380 is a wasteful number, since it uses less digits than its factorization.

1049371380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890 (or 3885 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1049371380 is about 32394.0022226337. The cubic root of 1049371380 is about 1016.1934823305.

The spelling of 1049371380 in words is "one billion, forty-nine million, three hundred seventy-one thousand, three hundred eighty".