72640414 has 48 divisors (see below), whose sum is σ = 138315744. Its totient is φ = 28005120.

The previous prime is 72640349. The next prime is 72640429. The reversal of 72640414 is 41404627.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 231922 + ... + 232234.

It is an arithmetic number, because the mean of its divisors is an integer number (2881578).

Almost surely, 2^72640414 is an apocalyptic number.

72640414 is a deficient number, since it is larger than the sum of its proper divisors (65675330).

72640414 is a wasteful number, since it uses less digits than its factorization.

72640414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 72640414 is about 8522.9345885088. The cubic root of 72640414 is about 417.2465652058.

The spelling of 72640414 in words is "seventy-two million, six hundred forty thousand, four hundred fourteen".