45021608 has 32 divisors (see below), whose sum is σ = 86947560. Its totient is φ = 21841920.

The previous prime is 45021589. The next prime is 45021617. The reversal of 45021608 is 80612054.

It can be written as a sum of positive squares in 4 ways, for example, as 6853924 + 38167684 = 2618^2 + 6178^2 .

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, 103760 + ... + 104192.

Almost surely, 2^45021608 is an apocalyptic number.

It is an amenable number.

45021608 is a deficient number, since it is larger than the sum of its proper divisors (41925952).

45021608 is a wasteful number, since it uses less digits than its factorization.

45021608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 793 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 45021608 is about 6709.8143044350. The cubic root of 45021608 is about 355.7462527098.

The spelling of 45021608 in words is "forty-five million, twenty-one thousand, six hundred eight".