731242304 has 56 divisors (see below), whose sum is σ = 1574170080. Its totient is φ = 335015424.

The previous prime is 731242271. The next prime is 731242321. The reversal of 731242304 is 403242137.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 112487 + ... + 118809.

It is an arithmetic number, because the mean of its divisors is an integer number (28110180).

Almost surely, 2^731242304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 731242304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (787085040).

731242304 is an abundant number, since it is smaller than the sum of its proper divisors (842927776).

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

731242304 is a wasteful number, since it uses less digits than its factorization.

731242304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6487 (or 6477 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 731242304 is about 27041.4922665152. The cubic root of 731242304 is about 900.9218143679.

The spelling of 731242304 in words is "seven hundred thirty-one million, two hundred forty-two thousand, three hundred four".