72625744 has 20 divisors (see below), whose sum is σ = 145565460. Its totient is φ = 35060480.

The previous prime is 72625673. The next prime is 72625757. The reversal of 72625744 is 44752627.

It can be written as a sum of positive squares in 2 ways, for example, as 36481600 + 36144144 = 6040^2 + 6012^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77797 + ... + 78724.

It is an arithmetic number, because the mean of its divisors is an integer number (7278273).

Almost surely, 2^72625744 is an apocalyptic number.

It is an amenable number.

72625744 is an abundant number, since it is smaller than the sum of its proper divisors (72939716).

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

72625744 is a wasteful number, since it uses less digits than its factorization.

72625744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156558 (or 156552 counting only the distinct ones).

The product of its digits is 94080, while the sum is 37.

The square root of 72625744 is about 8522.0739259877. The cubic root of 72625744 is about 417.2184751529.

The spelling of 72625744 in words is "seventy-two million, six hundred twenty-five thousand, seven hundred forty-four".