45631478 has 8 divisors (see below), whose sum is σ = 68508720. Its totient is φ = 22795240.

The previous prime is 45631459. The next prime is 45631499. The reversal of 45631478 is 87413654.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7298 + ... + 12021.

It is an arithmetic number, because the mean of its divisors is an integer number (8563590).

Almost surely, 2^45631478 is an apocalyptic number.

45631478 is a deficient number, since it is larger than the sum of its proper divisors (22877242).

45631478 is a wasteful number, since it uses less digits than its factorization.

45631478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20502.

The product of its digits is 80640, while the sum is 38.

The square root of 45631478 is about 6755.1075491068. The cubic root of 45631478 is about 357.3453857303.

The spelling of 45631478 in words is "forty-five million, six hundred thirty-one thousand, four hundred seventy-eight".