72464388 has 24 divisors (see below), whose sum is σ = 174914880. Its totient is φ = 23321760.

The previous prime is 72464377. The next prime is 72464393. The reversal of 72464388 is 88346427.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103768 + ... + 104463.

It is an arithmetic number, because the mean of its divisors is an integer number (7288120).

Almost surely, 2^72464388 is an apocalyptic number.

It is an amenable number.

72464388 is an abundant number, since it is smaller than the sum of its proper divisors (102450492).

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

72464388 is a wasteful number, since it uses less digits than its factorization.

72464388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208267 (or 208265 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 72464388 is about 8512.6017174540. The cubic root of 72464388 is about 416.9092614650.

The spelling of 72464388 in words is "seventy-two million, four hundred sixty-four thousand, three hundred eighty-eight".