313023540 has 24 divisors (see below), whose sum is σ = 876466080. Its totient is φ = 83472928.

The previous prime is 313023527. The next prime is 313023541. The reversal of 313023540 is 45320313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313023541) 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, 2608470 + ... + 2608589.

It is an arithmetic number, because the mean of its divisors is an integer number (36519420).

Almost surely, 2^313023540 is an apocalyptic number.

313023540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313023540 is an abundant number, since it is smaller than the sum of its proper divisors (563442540).

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

313023540 is a wasteful number, since it uses less digits than its factorization.

313023540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217071 (or 5217069 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 313023540 is about 17692.4712801802. The cubic root of 313023540 is about 678.9831543702.

Adding to 313023540 its reverse (45320313), we get a palindrome (358343853).

The spelling of 313023540 in words is "three hundred thirteen million, twenty-three thousand, five hundred forty".