72142296 has 16 divisors (see below), whose sum is σ = 180355800. Its totient is φ = 24047424.

The previous prime is 72142249. The next prime is 72142307. The reversal of 72142296 is 69224127.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502941 + ... + 1502988.

Almost surely, 2^72142296 is an apocalyptic number.

It is an amenable number.

72142296 is an abundant number, since it is smaller than the sum of its proper divisors (108213504).

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

72142296 is a wasteful number, since it uses less digits than its factorization.

72142296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005938 (or 3005934 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 72142296 is about 8493.6621077130. The cubic root of 72142296 is about 416.2906468617.

The spelling of 72142296 in words is "seventy-two million, one hundred forty-two thousand, two hundred ninety-six".