45688402 has 4 divisors (see below), whose sum is σ = 68532606. Its totient is φ = 22844200.

The previous prime is 45688399. The next prime is 45688421. The reversal of 45688402 is 20488654.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44876601 + 811801 = 6699^2 + 901^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11422099 + ... + 11422102.

Almost surely, 2^45688402 is an apocalyptic number.

45688402 is a deficient number, since it is larger than the sum of its proper divisors (22844204).

45688402 is a wasteful number, since it uses less digits than its factorization.

45688402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22844203.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 45688402 is about 6759.3196403188. The cubic root of 45688402 is about 357.4939167954.

The spelling of 45688402 in words is "forty-five million, six hundred eighty-eight thousand, four hundred two".