45391608 has 48 divisors (see below), whose sum is σ = 129409800. Its totient is φ = 14333760.

The previous prime is 45391607. The next prime is 45391609. The reversal of 45391608 is 80619354.

45391608 is a `hidden beast` number, since 45 + 3 + 9 + 1 + 608 = 666.

It is an interprime number because it is at equal distance from previous prime (45391607) and next prime (45391609).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45391603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15223 + ... + 17958.

Almost surely, 2^45391608 is an apocalyptic number.

It is an amenable number.

45391608 is an abundant number, since it is smaller than the sum of its proper divisors (84018192).

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

45391608 is a wasteful number, since it uses less digits than its factorization.

45391608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33212 (or 33205 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 45391608 is about 6737.3294412549. The cubic root of 45391608 is about 356.7181354476.

The spelling of 45391608 in words is "forty-five million, three hundred ninety-one thousand, six hundred eight".