313015340 has 24 divisors (see below), whose sum is σ = 717090192. Its totient is φ = 113823680.

The previous prime is 313015333. The next prime is 313015343. The reversal of 313015340 is 43510313.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (313015343) 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, 711179 + ... + 711618.

It is an arithmetic number, because the mean of its divisors is an integer number (29878758).

Almost surely, 2^313015340 is an apocalyptic number.

It is an amenable number.

313015340 is an abundant number, since it is smaller than the sum of its proper divisors (404074852).

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

313015340 is a wasteful number, since it uses less digits than its factorization.

313015340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422817 (or 1422815 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 313015340 is about 17692.2395416748. The cubic root of 313015340 is about 678.9772254120.

Adding to 313015340 its reverse (43510313), we get a palindrome (356525653).

The spelling of 313015340 in words is "three hundred thirteen million, fifteen thousand, three hundred forty".