313134440 has 32 divisors (see below), whose sum is σ = 741636000. Its totient is φ = 118661184.

The previous prime is 313134427. The next prime is 313134463. The reversal of 313134440 is 44431313.

It is a super-2 number, since 2×313134440² = 196106355028227200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205250 + ... + 206769.

It is an arithmetic number, because the mean of its divisors is an integer number (23176125).

Almost surely, 2^313134440 is an apocalyptic number.

It is an amenable number.

313134440 is an abundant number, since it is smaller than the sum of its proper divisors (428501560).

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

313134440 is a wasteful number, since it uses less digits than its factorization.

313134440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412049 (or 412045 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 313134440 is about 17695.6051040929. The cubic root of 313134440 is about 679.0633297473.

Adding to 313134440 its reverse (44431313), we get a palindrome (357565753).

It can be divided in two parts, 31313 and 4440, that added together give a palindrome (35753).

The spelling of 313134440 in words is "three hundred thirteen million, one hundred thirty-four thousand, four hundred forty".