45688540 has 24 divisors (see below), whose sum is σ = 100996560. Its totient is φ = 17313408.

The previous prime is 45688507. The next prime is 45688553. The reversal of 45688540 is 4588654.

It is a junction number, because it is equal to n+sod(n) for n = 45688493 and 45688502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59737 + ... + 60496.

It is an arithmetic number, because the mean of its divisors is an integer number (4208190).

Almost surely, 2^45688540 is an apocalyptic number.

It is an amenable number.

45688540 is an abundant number, since it is smaller than the sum of its proper divisors (55308020).

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

45688540 is a wasteful number, since it uses less digits than its factorization.

45688540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120261 (or 120259 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 45688540 is about 6759.3298484391. The cubic root of 45688540 is about 357.4942767271.

The spelling of 45688540 in words is "forty-five million, six hundred eighty-eight thousand, five hundred forty".