313204240 has 40 divisors (see below), whose sum is σ = 743702400. Its totient is φ = 122614656.

The previous prime is 313204231. The next prime is 313204279. The reversal of 313204240 is 42402313.

It is a tau number, because it is divible by the number of its divisors (40).

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, 37890 + ... + 45409.

It is an arithmetic number, because the mean of its divisors is an integer number (18592560).

Almost surely, 2^313204240 is an apocalyptic number.

It is an amenable number.

313204240 is an abundant number, since it is smaller than the sum of its proper divisors (430498160).

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

313204240 is a wasteful number, since it uses less digits than its factorization.

313204240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83359 (or 83353 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 313204240 is about 17697.5772353167. The cubic root of 313204240 is about 679.1137820908.

Adding to 313204240 its reverse (42402313), we get a palindrome (355606553).

The spelling of 313204240 in words is "three hundred thirteen million, two hundred four thousand, two hundred forty".