72635044 has 12 divisors (see below), whose sum is σ = 128237004. Its totient is φ = 35995904.

The previous prime is 72635039. The next prime is 72635047. The reversal of 72635044 is 44053627.

It can be written as a sum of positive squares in 2 ways, for example, as 16564900 + 56070144 = 4070^2 + 7488^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72634997 and 72635015.

It is not an unprimeable number, because it can be changed into a prime (72635047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79897 + ... + 80800.

It is an arithmetic number, because the mean of its divisors is an integer number (10686417).

Almost surely, 2^72635044 is an apocalyptic number.

It is an amenable number.

72635044 is a deficient number, since it is larger than the sum of its proper divisors (55601960).

72635044 is a wasteful number, since it uses less digits than its factorization.

72635044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160814 (or 160812 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 72635044 is about 8522.6195503495. The cubic root of 72635044 is about 417.2362831918.

The spelling of 72635044 in words is "seventy-two million, six hundred thirty-five thousand, forty-four".