1049251840 has 208 divisors, whose sum is σ = 3104454528. Its totient is φ = 331481088.

The previous prime is 1049251831. The next prime is 1049251867. The reversal of 1049251840 is 481529401.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (208).

It is a super-2 number, since 2×1049251840² = 2201858847486771200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1049251796 and 1049251805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1863399 + ... + 1863961.

Almost surely, 2^1049251840 is an apocalyptic number.

1049251840 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 1049251840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1552227264).

1049251840 is an abundant number, since it is smaller than the sum of its proper divisors (2055202688).

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

1049251840 is an equidigital number, since it uses as much as digits as its factorization.

1049251840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 1049251840 is about 32392.1570754403. The cubic root of 1049251840 is about 1016.1548940276.

The spelling of 1049251840 in words is "one billion, forty-nine million, two hundred fifty-one thousand, eight hundred forty".