72434446 has 24 divisors (see below), whose sum is σ = 129337560. Its totient is φ = 30319632.

The previous prime is 72434377. The next prime is 72434471. The reversal of 72434446 is 64443427.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4381 + ... + 12808.

It is an arithmetic number, because the mean of its divisors is an integer number (5389065).

Almost surely, 2^72434446 is an apocalyptic number.

72434446 is a deficient number, since it is larger than the sum of its proper divisors (56903114).

72434446 is a wasteful number, since it uses less digits than its factorization.

72434446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17248 (or 17241 counting only the distinct ones).

The product of its digits is 64512, while the sum is 34.

The square root of 72434446 is about 8510.8428489780. The cubic root of 72434446 is about 416.8518317989.

The spelling of 72434446 in words is "seventy-two million, four hundred thirty-four thousand, four hundred forty-six".