313444140 has 48 divisors (see below), whose sum is σ = 923838720. Its totient is φ = 79185600.

The previous prime is 313444133. The next prime is 313444163. The reversal of 313444140 is 41444313.

It is a self number, because there is not a number n which added to its sum of digits gives 313444140.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136336 + ... + 138615.

It is an arithmetic number, because the mean of its divisors is an integer number (19246640).

Almost surely, 2^313444140 is an apocalyptic number.

313444140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313444140 is an abundant number, since it is smaller than the sum of its proper divisors (610394580).

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

313444140 is a wasteful number, since it uses less digits than its factorization.

313444140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274982 (or 274980 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 313444140 is about 17704.3537018441. The cubic root of 313444140 is about 679.2871277835.

Adding to 313444140 its reverse (41444313), we get a palindrome (354888453).

It can be divided in two parts, 3134 and 44140, that added together give a palindrome (47274).

The spelling of 313444140 in words is "three hundred thirteen million, four hundred forty-four thousand, one hundred forty".