72409282 has 8 divisors (see below), whose sum is σ = 118487952. Its totient is φ = 32913300.

The previous prime is 72409261. The next prime is 72409297. The reversal of 72409282 is 28290427.

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

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, 1645644 + ... + 1645687.

It is an arithmetic number, because the mean of its divisors is an integer number (14810994).

Almost surely, 2^72409282 is an apocalyptic number.

72409282 is a deficient number, since it is larger than the sum of its proper divisors (46078670).

72409282 is a wasteful number, since it uses less digits than its factorization.

72409282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3291344.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 72409282 is about 8509.3643710914. The cubic root of 72409282 is about 416.8035542412.

The spelling of 72409282 in words is "seventy-two million, four hundred nine thousand, two hundred eighty-two".