1044745857 has 20 divisors (see below), whose sum is σ = 1567695360. Its totient is φ = 693361944.

The previous prime is 1044745811. The next prime is 1044745879. The reversal of 1044745857 is 7585474401.

1044745857 is a `hidden beast` number, since 104 + 47 + 458 + 57 = 666.

It is not a de Polignac number, because 1044745857 - 2¹¹ = 1044743809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1044745057) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10857 + ... + 46982.

It is an arithmetic number, because the mean of its divisors is an integer number (78384768).

Almost surely, 2^1044745857 is an apocalyptic number.

It is an amenable number.

1044745857 is a deficient number, since it is larger than the sum of its proper divisors (522949503).

1044745857 is an equidigital number, since it uses as much as digits as its factorization.

1044745857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58074 (or 58065 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 45.

The square root of 1044745857 is about 32322.5286294250. The cubic root of 1044745857 is about 1014.6981904152.

The spelling of 1044745857 in words is "one billion, forty-four million, seven hundred forty-five thousand, eight hundred fifty-seven".