45875538 has 64 divisors (see below), whose sum is σ = 109219200. Its totient is φ = 14230080.

The previous prime is 45875507. The next prime is 45875549. The reversal of 45875538 is 83557854.

45875538 is a `hidden beast` number, since 45 + 8 + 75 + 538 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 45875493 and 45875502.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62220 + ... + 62952.

It is an arithmetic number, because the mean of its divisors is an integer number (1706550).

Almost surely, 2^45875538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45875538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54609600).

45875538 is an abundant number, since it is smaller than the sum of its proper divisors (63343662).

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

45875538 is a wasteful number, since it uses less digits than its factorization.

45875538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 818 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 45875538 is about 6773.1483078403. The cubic root of 45875538 is about 357.9813406419.

The spelling of 45875538 in words is "forty-five million, eight hundred seventy-five thousand, five hundred thirty-eight".