1049890380 has 288 divisors, whose sum is σ = 3756652032. Its totient is φ = 214410240.

The previous prime is 1049890379. The next prime is 1049890483. The reversal of 1049890380 is 830989401.

It is a super-2 number, since 2×1049890380² = 2204539620033088800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3709719 + ... + 3710001.

Almost surely, 2^1049890380 is an apocalyptic number.

1049890380 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 1049890380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1878326016).

1049890380 is an abundant number, since it is smaller than the sum of its proper divisors (2706761652).

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

1049890380 is a wasteful number, since it uses less digits than its factorization.

1049890380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 1049890380 is about 32402.0119745673. The cubic root of 1049890380 is about 1016.3609849907.

The spelling of 1049890380 in words is "one billion, forty-nine million, eight hundred ninety thousand, three hundred eighty".