45390628 has 12 divisors (see below), whose sum is σ = 81281200. Its totient is φ = 22167432.

The previous prime is 45390619. The next prime is 45390643. The reversal of 45390628 is 82609354.

It is a super-2 number, since 2×45390628² = 4120618220468768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131778 + ... + 132121.

Almost surely, 2^45390628 is an apocalyptic number.

It is an amenable number.

45390628 is a deficient number, since it is larger than the sum of its proper divisors (35890572).

45390628 is a wasteful number, since it uses less digits than its factorization.

45390628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263946 (or 263944 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 45390628 is about 6737.2567117485. The cubic root of 45390628 is about 356.7155682602.

The spelling of 45390628 in words is "forty-five million, three hundred ninety thousand, six hundred twenty-eight".