72039410 has 8 divisors (see below), whose sum is σ = 129670956. Its totient is φ = 28815760.

The previous prime is 72039397. The next prime is 72039433. The reversal of 72039410 is 1493027.

It can be written as a sum of positive squares in 2 ways, for example, as 71284249 + 755161 = 8443^2 + 869^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 72039410.

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, 3601961 + ... + 3601980.

Almost surely, 2^72039410 is an apocalyptic number.

72039410 is a deficient number, since it is larger than the sum of its proper divisors (57631546).

72039410 is a wasteful number, since it uses less digits than its factorization.

72039410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7203948.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 72039410 is about 8487.6033130678. The cubic root of 72039410 is about 416.0926545652.

The spelling of 72039410 in words is "seventy-two million, thirty-nine thousand, four hundred ten".