45038858 has 4 divisors (see below), whose sum is σ = 67558290. Its totient is φ = 22519428.

The previous prime is 45038857. The next prime is 45038863. The reversal of 45038858 is 85883054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85883054 = 2 ⋅42941527.

It can be written as a sum of positive squares in only one way, i.e., 42159049 + 2879809 = 6493^2 + 1697^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45038857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11259713 + ... + 11259716.

Almost surely, 2^45038858 is an apocalyptic number.

45038858 is a deficient number, since it is larger than the sum of its proper divisors (22519432).

45038858 is a wasteful number, since it uses less digits than its factorization.

45038858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22519431.

The product of its (nonzero) digits is 153600, while the sum is 41.

The square root of 45038858 is about 6711.0996118371. The cubic root of 45038858 is about 355.7916815572.

The spelling of 45038858 in words is "forty-five million, thirty-eight thousand, eight hundred fifty-eight".