313212040 has 32 divisors (see below), whose sum is σ = 705257280. Its totient is φ = 125190592.

The previous prime is 313212001. The next prime is 313212041. The reversal of 313212040 is 40212313.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (313212041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79149 + ... + 83011.

It is an arithmetic number, because the mean of its divisors is an integer number (22039290).

Almost surely, 2^313212040 is an apocalyptic number.

It is an amenable number.

313212040 is an abundant number, since it is smaller than the sum of its proper divisors (392045240).

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

313212040 is a wasteful number, since it uses less digits than its factorization.

313212040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5901 (or 5897 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 313212040 is about 17697.7976030917. The cubic root of 313212040 is about 679.1194195661.

Adding to 313212040 its reverse (40212313), we get a palindrome (353424353).

The spelling of 313212040 in words is "three hundred thirteen million, two hundred twelve thousand, forty".