72761444 has 24 divisors (see below), whose sum is σ = 145810560. Its totient is φ = 31121856.

The previous prime is 72761441. The next prime is 72761459. The reversal of 72761444 is 44416727.

It is not an unprimeable number, because it can be changed into a prime (72761441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13649 + ... + 18215.

It is an arithmetic number, because the mean of its divisors is an integer number (6075440).

Almost surely, 2^72761444 is an apocalyptic number.

It is an amenable number.

72761444 is an abundant number, since it is smaller than the sum of its proper divisors (73049116).

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

72761444 is a wasteful number, since it uses less digits than its factorization.

72761444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5147 (or 5145 counting only the distinct ones).

The product of its digits is 37632, while the sum is 35.

The square root of 72761444 is about 8530.0318873964. The cubic root of 72761444 is about 417.4781687462.

The spelling of 72761444 in words is "seventy-two million, seven hundred sixty-one thousand, four hundred forty-four".