731725488 has 240 divisors, whose sum is σ = 2365848576. Its totient is φ = 217416960.

The previous prime is 731725459. The next prime is 731725513. The reversal of 731725488 is 884527137.

731725488 is a `hidden beast` number, since 7 + 31 + 72 + 548 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1566631 + ... + 1567097.

Almost surely, 2^731725488 is an apocalyptic number.

731725488 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 731725488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1182924288).

731725488 is an abundant number, since it is smaller than the sum of its proper divisors (1634123088).

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

731725488 is a wasteful number, since it uses less digits than its factorization.

731725488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 516 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 731725488 is about 27050.4249134833. The cubic root of 731725488 is about 901.1202051331.

The spelling of 731725488 in words is "seven hundred thirty-one million, seven hundred twenty-five thousand, four hundred eighty-eight".