45731616 has 48 divisors (see below), whose sum is σ = 137196864. Its totient is φ = 13065984.

The previous prime is 45731591. The next prime is 45731627. The reversal of 45731616 is 61613754.

45731616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33355 + ... + 34698.

It is an arithmetic number, because the mean of its divisors is an integer number (2858268).

Almost surely, 2^45731616 is an apocalyptic number.

It is an amenable number.

45731616 is an abundant number, since it is smaller than the sum of its proper divisors (91465248).

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

45731616 is a wasteful number, since it uses less digits than its factorization.

45731616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68073 (or 68065 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 45731616 is about 6762.5155083001. The cubic root of 45731616 is about 357.6065921741.

The spelling of 45731616 in words is "forty-five million, seven hundred thirty-one thousand, six hundred sixteen".