313130040 has 32 divisors (see below), whose sum is σ = 939390480. Its totient is φ = 83501312.

The previous prime is 313130029. The next prime is 313130053. The reversal of 313130040 is 40031313.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 1304589 + ... + 1304828.

Almost surely, 2^313130040 is an apocalyptic number.

313130040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313130040 is an abundant number, since it is smaller than the sum of its proper divisors (626260440).

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

313130040 is a wasteful number, since it uses less digits than its factorization.

313130040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609431 (or 2609427 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 313130040 is about 17695.4807790012. The cubic root of 313130040 is about 679.0601491191.

Adding to 313130040 its reverse (40031313), we get a palindrome (353161353).

The spelling of 313130040 in words is "three hundred thirteen million, one hundred thirty thousand, forty".