72881574 has 16 divisors (see below), whose sum is σ = 145877760. Its totient is φ = 24274760.

The previous prime is 72881573. The next prime is 72881581. The reversal of 72881574 is 47518827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72881573) by changing a digit.

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, 5047 + ... + 13085.

It is an arithmetic number, because the mean of its divisors is an integer number (9117360).

Almost surely, 2^72881574 is an apocalyptic number.

72881574 is an abundant number, since it is smaller than the sum of its proper divisors (72996186).

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

72881574 is a wasteful number, since it uses less digits than its factorization.

72881574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9555.

The product of its digits is 125440, while the sum is 42.

The square root of 72881574 is about 8537.0705748518. The cubic root of 72881574 is about 417.7077962093.

The spelling of 72881574 in words is "seventy-two million, eight hundred eighty-one thousand, five hundred seventy-four".