313224140 has 24 divisors (see below), whose sum is σ = 658879872. Its totient is φ = 125078400.

The previous prime is 313224113. The next prime is 313224151. The reversal of 313224140 is 41422313.

313224140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

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, 761 + ... + 25040.

It is an arithmetic number, because the mean of its divisors is an integer number (27453328).

Almost surely, 2^313224140 is an apocalyptic number.

It is an amenable number.

313224140 is an abundant number, since it is smaller than the sum of its proper divisors (345655732).

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

313224140 is a wasteful number, since it uses less digits than its factorization.

313224140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26417 (or 26415 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 313224140 is about 17698.1394502360. The cubic root of 313224140 is about 679.1281646952.

Adding to 313224140 its reverse (41422313), we get a palindrome (354646453).

It can be divided in two parts, 3132 and 24140, that added together give a palindrome (27272).

The spelling of 313224140 in words is "three hundred thirteen million, two hundred twenty-four thousand, one hundred forty".