313242340 has 48 divisors (see below), whose sum is σ = 720543600. Its totient is φ = 113856512.

The previous prime is 313242329. The next prime is 313242389. The reversal of 313242340 is 43242313.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 376996 + 312865344 = 614^2 + 17688^2 .

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, 6025 + ... + 25744.

It is an arithmetic number, because the mean of its divisors is an integer number (15011325).

Almost surely, 2^313242340 is an apocalyptic number.

It is an amenable number.

313242340 is an abundant number, since it is smaller than the sum of its proper divisors (407301260).

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

313242340 is a wasteful number, since it uses less digits than its factorization.

313242340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31824 (or 31822 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 313242340 is about 17698.6536211091. The cubic root of 313242340 is about 679.1413181016.

Adding to 313242340 its reverse (43242313), we get a palindrome (356484653).

The spelling of 313242340 in words is "three hundred thirteen million, two hundred forty-two thousand, three hundred forty".