72412844 has 12 divisors (see below), whose sum is σ = 144825744. Its totient is φ = 31034064.

The previous prime is 72412831. The next prime is 72412867. The reversal of 72412844 is 44821427.

72412844 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 72412844.

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, 1293059 + ... + 1293114.

It is an arithmetic number, because the mean of its divisors is an integer number (12068812).

Almost surely, 2^72412844 is an apocalyptic number.

It is an amenable number.

72412844 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72412844 is a wasteful number, since it uses less digits than its factorization.

72412844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586184 (or 2586182 counting only the distinct ones).

The product of its digits is 14336, while the sum is 32.

The square root of 72412844 is about 8509.5736673467. The cubic root of 72412844 is about 416.8103886776.

The spelling of 72412844 in words is "seventy-two million, four hundred twelve thousand, eight hundred forty-four".