72234556 has 6 divisors (see below), whose sum is σ = 126410480. Its totient is φ = 36117276.

The previous prime is 72234527. The next prime is 72234571. The reversal of 72234556 is 65543227.

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 as a sum of consecutive naturals, namely, 9029316 + ... + 9029323.

Almost surely, 2^72234556 is an apocalyptic number.

It is an amenable number.

72234556 is a deficient number, since it is larger than the sum of its proper divisors (54175924).

72234556 is a wasteful number, since it uses less digits than its factorization.

72234556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18058643 (or 18058641 counting only the distinct ones).

The product of its digits is 50400, while the sum is 34.

The square root of 72234556 is about 8499.0914808584. The cubic root of 72234556 is about 416.4680306178.

The spelling of 72234556 in words is "seventy-two million, two hundred thirty-four thousand, five hundred fifty-six".