72459396 has 36 divisors (see below), whose sum is σ = 183456000. Its totient is φ = 24114288.

The previous prime is 72459391. The next prime is 72459397. The reversal of 72459396 is 69395427.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (72459391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29005 + ... + 31403.

It is an arithmetic number, because the mean of its divisors is an integer number (5096000).

Almost surely, 2^72459396 is an apocalyptic number.

It is an amenable number.

72459396 is an abundant number, since it is smaller than the sum of its proper divisors (110996604).

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

72459396 is a wasteful number, since it uses less digits than its factorization.

72459396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248 (or 3243 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 72459396 is about 8512.3085000486. The cubic root of 72459396 is about 416.8996877563.

It can be divided in two parts, 7245 and 9396, that added together give a square (16641 = 129²).

The spelling of 72459396 in words is "seventy-two million, four hundred fifty-nine thousand, three hundred ninety-six".