731245020 has 96 divisors (see below), whose sum is σ = 2351220480. Its totient is φ = 167938560.

The previous prime is 731245007. The next prime is 731245033. The reversal of 731245020 is 20542137.

It is an interprime number because it is at equal distance from previous prime (731245007) and next prime (731245033).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16617 + ... + 41696.

It is an arithmetic number, because the mean of its divisors is an integer number (24491880).

Almost surely, 2^731245020 is an apocalyptic number.

It is an amenable number.

731245020 is an abundant number, since it is smaller than the sum of its proper divisors (1619975460).

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

731245020 is a wasteful number, since it uses less digits than its factorization.

731245020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58355 (or 58353 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 731245020 is about 27041.5424855906. The cubic root of 731245020 is about 900.9229297759.

Adding to 731245020 its reverse (20542137), we get a palindrome (751787157).

The spelling of 731245020 in words is "seven hundred thirty-one million, two hundred forty-five thousand, twenty".