45328657 has 12 divisors (see below), whose sum is σ = 51044868. Its totient is φ = 40198400.

The previous prime is 45328637. The next prime is 45328667. The reversal of 45328657 is 75682354.

It can be written as a sum of positive squares in 2 ways, for example, as 1185921 + 44142736 = 1089^2 + 6644^2 .

It is not a de Polignac number, because 45328657 - 2⁷ = 45328529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45328637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 393 + ... + 9529.

It is an arithmetic number, because the mean of its divisors is an integer number (4253739).

Almost surely, 2^45328657 is an apocalyptic number.

It is an amenable number.

45328657 is a deficient number, since it is larger than the sum of its proper divisors (5716211).

45328657 is a wasteful number, since it uses less digits than its factorization.

45328657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9200 (or 9189 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 45328657 is about 6732.6560137883. The cubic root of 45328657 is about 356.5531552291.

The spelling of 45328657 in words is "forty-five million, three hundred twenty-eight thousand, six hundred fifty-seven".