731742672 has 40 divisors (see below), whose sum is σ = 1898690976. Its totient is φ = 242836096.

The previous prime is 731742659. The next prime is 731742689. The reversal of 731742672 is 276247137.

It is a self number, because there is not a number n which added to its sum of digits gives 731742672.

It is a congruent number.

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, 22683 + ... + 44474.

Almost surely, 2^731742672 is an apocalyptic number.

It is an amenable number.

731742672 is an abundant number, since it is smaller than the sum of its proper divisors (1166948304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

731742672 is a wasteful number, since it uses less digits than its factorization.

731742672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67395 (or 67389 counting only the distinct ones).

The product of its digits is 98784, while the sum is 39.

The square root of 731742672 is about 27050.7425406402. The cubic root of 731742672 is about 901.1272591120.

The spelling of 731742672 in words is "seven hundred thirty-one million, seven hundred forty-two thousand, six hundred seventy-two".