45645028 has 48 divisors (see below), whose sum is σ = 94550400. Its totient is φ = 19008000.

The previous prime is 45645001. The next prime is 45645071. The reversal of 45645028 is 82054654.

It is a super-2 number, since 2×45645028² = 4166937162241568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 45644984 and 45645002.

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, 113628 + ... + 114028.

It is an arithmetic number, because the mean of its divisors is an integer number (1969800).

Almost surely, 2^45645028 is an apocalyptic number.

It is an amenable number.

45645028 is an abundant number, since it is smaller than the sum of its proper divisors (48905372).

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

45645028 is a wasteful number, since it uses less digits than its factorization.

45645028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 45645028 is about 6756.1104194647. The cubic root of 45645028 is about 357.3807527693.

The spelling of 45645028 in words is "forty-five million, six hundred forty-five thousand, twenty-eight".