72162596 has 12 divisors (see below), whose sum is σ = 137765040. Its totient is φ = 32801160.

The previous prime is 72162593. The next prime is 72162613. The reversal of 72162596 is 69526127.

It is a happy number.

It is a super-2 number, since 2×72162596² = 10414880522918432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72162593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819986 + ... + 820073.

It is an arithmetic number, because the mean of its divisors is an integer number (11480420).

Almost surely, 2^72162596 is an apocalyptic number.

It is an amenable number.

72162596 is a deficient number, since it is larger than the sum of its proper divisors (65602444).

72162596 is a wasteful number, since it uses less digits than its factorization.

72162596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640074 (or 1640072 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 72162596 is about 8494.8570323461. The cubic root of 72162596 is about 416.3296896428.

The spelling of 72162596 in words is "seventy-two million, one hundred sixty-two thousand, five hundred ninety-six".