72492818 has 16 divisors (see below), whose sum is σ = 112527360. Its totient is φ = 34989600.

The previous prime is 72492799. The next prime is 72492881. The reversal of 72492818 is 81829427.

It is a super-2 number, since 2×72492818² = 10510417323162248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28478 + ... + 30918.

It is an arithmetic number, because the mean of its divisors is an integer number (7032960).

Almost surely, 2^72492818 is an apocalyptic number.

72492818 is a deficient number, since it is larger than the sum of its proper divisors (40034542).

72492818 is a wasteful number, since it uses less digits than its factorization.

72492818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953.

The product of its digits is 64512, while the sum is 41.

The square root of 72492818 is about 8514.2714309564. The cubic root of 72492818 is about 416.9637764293.

The spelling of 72492818 in words is "seventy-two million, four hundred ninety-two thousand, eight hundred eighteen".