1044745856 has 192 divisors, whose sum is σ = 2783743200. Its totient is φ = 385136640.

The previous prime is 1044745811. The next prime is 1044745879. The reversal of 1044745856 is 6585474401.

It is a hoax number, since the sum of its digits (44) 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 (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1310450 + ... + 1311246.

Almost surely, 2^1044745856 is an apocalyptic number.

1044745856 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 1044745856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1391871600).

1044745856 is an abundant number, since it is smaller than the sum of its proper divisors (1738997344).

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

1044745856 is a wasteful number, since it uses less digits than its factorization.

1044745856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855 (or 836 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 44.

The square root of 1044745856 is about 32322.5286139559. The cubic root of 1044745856 is about 1014.6981900914.

The spelling of 1044745856 in words is "one billion, forty-four million, seven hundred forty-five thousand, eight hundred fifty-six".