72408044 has 12 divisors (see below), whose sum is σ = 129661224. Its totient is φ = 35361984.

The previous prime is 72408013. The next prime is 72408047. The reversal of 72408044 is 44080427.

It is a junction number, because it is equal to n+sod(n) for n = 72407998 and 72408016.

It is not an unprimeable number, because it can be changed into a prime (72408047) 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, 210317 + ... + 210660.

It is an arithmetic number, because the mean of its divisors is an integer number (10805102).

Almost surely, 2^72408044 is an apocalyptic number.

It is an amenable number.

72408044 is a deficient number, since it is larger than the sum of its proper divisors (57253180).

72408044 is a wasteful number, since it uses less digits than its factorization.

72408044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421024 (or 421022 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 72408044 is about 8509.2916273918. The cubic root of 72408044 is about 416.8011788287.

The spelling of 72408044 in words is "seventy-two million, four hundred eight thousand, forty-four".