45124690 has 24 divisors (see below), whose sum is σ = 87956388. Its totient is φ = 16660800.

The previous prime is 45124669. The next prime is 45124697. The reversal of 45124690 is 9642154.

It can be written as a sum of positive squares in 6 ways, for example, as 194481 + 44930209 = 441^2 + 6703^2 .

It is a super-2 number, since 2×45124690² = 4072475295192200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (45124697) 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, 11661 + ... + 15040.

Almost surely, 2^45124690 is an apocalyptic number.

45124690 is a deficient number, since it is larger than the sum of its proper divisors (42831698).

45124690 is a wasteful number, since it uses less digits than its factorization.

45124690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26734 (or 26721 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 45124690 is about 6717.4913472218. The cubic root of 45124690 is about 356.0175526842.

The spelling of 45124690 in words is "forty-five million, one hundred twenty-four thousand, six hundred ninety".