72434330 has 16 divisors (see below), whose sum is σ = 130580424. Its totient is φ = 28929600.

The previous prime is 72434311. The next prime is 72434347. The reversal of 72434330 is 3343427.

It can be written as a sum of positive squares in 4 ways, for example, as 71081761 + 1352569 = 8431^2 + 1163^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72434330.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1844 + ... + 12176.

Almost surely, 2^72434330 is an apocalyptic number.

72434330 is a deficient number, since it is larger than the sum of its proper divisors (58146094).

72434330 is a wasteful number, since it uses less digits than its factorization.

72434330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11041.

The product of its (nonzero) digits is 6048, while the sum is 26.

The square root of 72434330 is about 8510.8360341391. The cubic root of 72434330 is about 416.8516092766.

Adding to 72434330 its reverse (3343427), we get a palindrome (75777757).

The spelling of 72434330 in words is "seventy-two million, four hundred thirty-four thousand, three hundred thirty".