313023040 has 112 divisors (see below), whose sum is σ = 861145344. Its totient is φ = 107110400.

The previous prime is 313023017. The next prime is 313023047. The reversal of 313023040 is 40320313.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (313023047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57225 + ... + 62455.

Almost surely, 2^313023040 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 313023040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430572672).

313023040 is an abundant number, since it is smaller than the sum of its proper divisors (548122304).

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

313023040 is a wasteful number, since it uses less digits than its factorization.

313023040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5276 (or 5266 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 313023040 is about 17692.4571498704. The cubic root of 313023040 is about 678.9827928513.

Adding to 313023040 its reverse (40320313), we get a palindrome (353343353).

The spelling of 313023040 in words is "three hundred thirteen million, twenty-three thousand, forty".