72324406 has 32 divisors (see below), whose sum is σ = 137491200. Its totient is φ = 27712800.

The previous prime is 72324401. The next prime is 72324419. The reversal of 72324406 is 60442327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72324401) 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, 5545 + ... + 13243.

It is an arithmetic number, because the mean of its divisors is an integer number (4296600).

Almost surely, 2^72324406 is an apocalyptic number.

72324406 is a deficient number, since it is larger than the sum of its proper divisors (65166794).

72324406 is a wasteful number, since it uses less digits than its factorization.

72324406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7780.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 72324406 is about 8504.3756972514. The cubic root of 72324406 is about 416.6406356715.

The spelling of 72324406 in words is "seventy-two million, three hundred twenty-four thousand, four hundred six".