45644473 has 16 divisors (see below), whose sum is σ = 56415744. Its totient is φ = 36034560.

The previous prime is 45644449. The next prime is 45644483. The reversal of 45644473 is 37444654.

It is not a de Polignac number, because 45644473 - 2²¹ = 43547321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45644413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1513 + ... + 9673.

It is an arithmetic number, because the mean of its divisors is an integer number (3525984).

Almost surely, 2^45644473 is an apocalyptic number.

It is an amenable number.

45644473 is a deficient number, since it is larger than the sum of its proper divisors (10771271).

45644473 is a wasteful number, since it uses less digits than its factorization.

45644473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8232.

The product of its digits is 161280, while the sum is 37.

The square root of 45644473 is about 6756.0693454108. The cubic root of 45644473 is about 357.3793042937.

The spelling of 45644473 in words is "forty-five million, six hundred forty-four thousand, four hundred seventy-three".