72596440 has 48 divisors (see below), whose sum is σ = 190015200. Its totient is φ = 24889536.

The previous prime is 72596431. The next prime is 72596453. The reversal of 72596440 is 4469527.

It is a self number, because there is not a number n which added to its sum of digits gives 72596440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16560 + ... + 20479.

It is an arithmetic number, because the mean of its divisors is an integer number (3958650).

Almost surely, 2^72596440 is an apocalyptic number.

72596440 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72596440 is an abundant number, since it is smaller than the sum of its proper divisors (117418760).

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

72596440 is a wasteful number, since it uses less digits than its factorization.

72596440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37064 (or 37053 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 72596440 is about 8520.3544527208. The cubic root of 72596440 is about 417.1623526529.

The spelling of 72596440 in words is "seventy-two million, five hundred ninety-six thousand, four hundred forty".