731664122 has 64 divisors (see below), whose sum is σ = 1436071680. Its totient is φ = 271973376.

The previous prime is 731664119. The next prime is 731664137. The reversal of 731664122 is 221466137.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165128 + ... + 169500.

It is an arithmetic number, because the mean of its divisors is an integer number (22438620).

Almost surely, 2^731664122 is an apocalyptic number.

731664122 is a deficient number, since it is larger than the sum of its proper divisors (704407558).

731664122 is a wasteful number, since it uses less digits than its factorization.

731664122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4455.

The product of its digits is 12096, while the sum is 32.

The square root of 731664122 is about 27049.2906006793. The cubic root of 731664122 is about 901.0950136785.

The spelling of 731664122 in words is "seven hundred thirty-one million, six hundred sixty-four thousand, one hundred twenty-two".