731844864 has 216 divisors, whose sum is σ = 2209727520. Its totient is φ = 232759296.

The previous prime is 731844863. The next prime is 731844887. The reversal of 731844864 is 468448137.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (731844863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8222932 + ... + 8223020.

It is an arithmetic number, because the mean of its divisors is an integer number (10230220).

Almost surely, 2^731844864 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 731844864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1104863760).

731844864 is an abundant number, since it is smaller than the sum of its proper divisors (1477882656).

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

731844864 is a wasteful number, since it uses less digits than its factorization.

731844864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 220 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 731844864 is about 27052.6313692402. The cubic root of 731844864 is about 901.1692063310.

The spelling of 731844864 in words is "seven hundred thirty-one million, eight hundred forty-four thousand, eight hundred sixty-four".