1044899856 has 360 divisors, whose sum is σ = 3962038080. Its totient is φ = 250145280.

The previous prime is 1044899837. The next prime is 1044899861. The reversal of 1044899856 is 6589984401.

1044899856 is a `hidden beast` number, since 104 + 489 + 9 + 8 + 56 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1585255 + ... + 1585913.

Almost surely, 2^1044899856 is an apocalyptic number.

1044899856 is a gapful number since it is divisible by the number (16) 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 1044899856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1981019040).

1044899856 is an abundant number, since it is smaller than the sum of its proper divisors (2917138224).

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

1044899856 is a wasteful number, since it uses less digits than its factorization.

1044899856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 1044899856 is about 32324.9107655381. The cubic root of 1044899856 is about 1014.7480445905.

The spelling of 1044899856 in words is "one billion, forty-four million, eight hundred ninety-nine thousand, eight hundred fifty-six".