45638632 has 16 divisors (see below), whose sum is σ = 92155140. Its totient is φ = 21063936.

The previous prime is 45638623. The next prime is 45638639. The reversal of 45638632 is 23683654.

45638632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 43639236 + 1999396 = 6606^2 + 1414^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45638591 and 45638600.

It is not an unprimeable number, because it can be changed into a prime (45638639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219313 + ... + 219520.

Almost surely, 2^45638632 is an apocalyptic number.

It is an amenable number.

45638632 is an abundant number, since it is smaller than the sum of its proper divisors (46516508).

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

45638632 is a wasteful number, since it uses less digits than its factorization.

45638632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438852 (or 438848 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 45638632 is about 6755.6370536020. The cubic root of 45638632 is about 357.3640593551.

The spelling of 45638632 in words is "forty-five million, six hundred thirty-eight thousand, six hundred thirty-two".