72241506 has 24 divisors (see below), whose sum is σ = 158730624. Its totient is φ = 23740920.

The previous prime is 72241493. The next prime is 72241529. The reversal of 72241506 is 60514227.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72241506.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 26986 + ... + 29541.

It is an arithmetic number, because the mean of its divisors is an integer number (6613776).

Almost surely, 2^72241506 is an apocalyptic number.

72241506 is an abundant number, since it is smaller than the sum of its proper divisors (86489118).

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

72241506 is a wasteful number, since it uses less digits than its factorization.

72241506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56606 (or 56603 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 72241506 is about 8499.5003382552. The cubic root of 72241506 is about 416.4813869214.

The spelling of 72241506 in words is "seventy-two million, two hundred forty-one thousand, five hundred six".