72468226 has 4 divisors (see below), whose sum is σ = 108702342. Its totient is φ = 36234112.

The previous prime is 72468199. The next prime is 72468241. The reversal of 72468226 is 62286427.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72233001 + 235225 = 8499^2 + 485^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18117055 + ... + 18117058.

Almost surely, 2^72468226 is an apocalyptic number.

72468226 is a deficient number, since it is larger than the sum of its proper divisors (36234116).

72468226 is a wasteful number, since it uses less digits than its factorization.

72468226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36234115.

The product of its digits is 64512, while the sum is 37.

The square root of 72468226 is about 8512.8271449619. The cubic root of 72468226 is about 416.9166217217.

The spelling of 72468226 in words is "seventy-two million, four hundred sixty-eight thousand, two hundred twenty-six".