72750412 has 24 divisors (see below), whose sum is σ = 154060704. Its totient is φ = 29344512.

The previous prime is 72750383. The next prime is 72750427. The reversal of 72750412 is 21405727.

It is a Harshad number since it is a multiple of its sum of digits (28).

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 7 ways as a sum of consecutive naturals, for example, 75943 + ... + 76894.

It is an arithmetic number, because the mean of its divisors is an integer number (6419196).

Almost surely, 2^72750412 is an apocalyptic number.

It is an amenable number.

72750412 is an abundant number, since it is smaller than the sum of its proper divisors (81310292).

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

72750412 is a wasteful number, since it uses less digits than its factorization.

72750412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152865 (or 152863 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 72750412 is about 8529.3852064495. The cubic root of 72750412 is about 417.4570685055.

The spelling of 72750412 in words is "seventy-two million, seven hundred fifty thousand, four hundred twelve".