45446538 has 32 divisors (see below), whose sum is σ = 94944960. Its totient is φ = 14483840.

The previous prime is 45446507. The next prime is 45446543. The reversal of 45446538 is 83564454.

It is a junction number, because it is equal to n+sod(n) for n = 45446496 and 45446505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17398 + ... + 19838.

It is an arithmetic number, because the mean of its divisors is an integer number (2967030).

Almost surely, 2^45446538 is an apocalyptic number.

45446538 is an abundant number, since it is smaller than the sum of its proper divisors (49498422).

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

45446538 is a wasteful number, since it uses less digits than its factorization.

45446538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582.

The product of its digits is 230400, while the sum is 39.

The square root of 45446538 is about 6741.4047497536. The cubic root of 45446538 is about 356.8619698797.

The spelling of 45446538 in words is "forty-five million, four hundred forty-six thousand, five hundred thirty-eight".