72310632 has 32 divisors (see below), whose sum is σ = 181154880. Its totient is φ = 24053120.

The previous prime is 72310627. The next prime is 72310633. The reversal of 72310632 is 23601327.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (72310633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9613 + ... + 15395.

It is an arithmetic number, because the mean of its divisors is an integer number (5661090).

Almost surely, 2^72310632 is an apocalyptic number.

It is an amenable number.

72310632 is an abundant number, since it is smaller than the sum of its proper divisors (108844248).

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

72310632 is a wasteful number, since it uses less digits than its factorization.

72310632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6313 (or 6309 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 72310632 is about 8503.5658402814. The cubic root of 72310632 is about 416.6141846076.

Adding to 72310632 its reverse (23601327), we get a palindrome (95911959).

The spelling of 72310632 in words is "seventy-two million, three hundred ten thousand, six hundred thirty-two".