313008240 has 80 divisors (see below), whose sum is σ = 1001650176. Its totient is φ = 80774400.

The previous prime is 313008217. The next prime is 313008253. The reversal of 313008240 is 42800313.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 13596 + ... + 28475.

Almost surely, 2^313008240 is an apocalyptic number.

313008240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313008240 is an abundant number, since it is smaller than the sum of its proper divisors (688641936).

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

313008240 is a wasteful number, since it uses less digits than its factorization.

313008240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42118 (or 42112 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 313008240 is about 17692.0388875901. The cubic root of 313008240 is about 678.9720917181.

Adding to 313008240 its reverse (42800313), we get a palindrome (355808553).

The spelling of 313008240 in words is "three hundred thirteen million, eight thousand, two hundred forty".