731424560 has 40 divisors (see below), whose sum is σ = 1702056240. Its totient is φ = 292312832.

The previous prime is 731424557. The next prime is 731424563. The reversal of 731424560 is 65424137.

It is an interprime number because it is at equal distance from previous prime (731424557) and next prime (731424563).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (731424563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106511 + ... + 113169.

It is an arithmetic number, because the mean of its divisors is an integer number (42551406).

Almost surely, 2^731424560 is an apocalyptic number.

It is an amenable number.

731424560 is an abundant number, since it is smaller than the sum of its proper divisors (970631680).

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

731424560 is a wasteful number, since it uses less digits than its factorization.

731424560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8045 (or 8039 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 731424560 is about 27044.8619889250. The cubic root of 731424560 is about 900.9966572143.

Adding to 731424560 its reverse (65424137), we get a palindrome (796848697).

The spelling of 731424560 in words is "seven hundred thirty-one million, four hundred twenty-four thousand, five hundred sixty".