45056739 has 32 divisors (see below), whose sum is σ = 74497024. Its totient is φ = 23587200.

The previous prime is 45056723. The next prime is 45056741. The reversal of 45056739 is 93765054.

It is not a de Polignac number, because 45056739 - 2⁴ = 45056723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 45056697 and 45056706.

It is not an unprimeable number, because it can be changed into a prime (45056779) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40677 + ... + 41769.

It is an arithmetic number, because the mean of its divisors is an integer number (2328032).

Almost surely, 2^45056739 is an apocalyptic number.

45056739 is a deficient number, since it is larger than the sum of its proper divisors (29440285).

45056739 is a wasteful number, since it uses less digits than its factorization.

45056739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 45056739 is about 6712.4316756299. The cubic root of 45056739 is about 355.8387599365.

The spelling of 45056739 in words is "forty-five million, fifty-six thousand, seven hundred thirty-nine".