313450040 has 16 divisors (see below), whose sum is σ = 705262680. Its totient is φ = 125380000.

The previous prime is 313450031. The next prime is 313450061. The reversal of 313450040 is 40054313.

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

It is a junction number, because it is equal to n+sod(n) for n = 313449994 and 313450021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3918086 + ... + 3918165.

Almost surely, 2^313450040 is an apocalyptic number.

It is an amenable number.

313450040 is an abundant number, since it is smaller than the sum of its proper divisors (391812640).

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

313450040 is a wasteful number, since it uses less digits than its factorization.

313450040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7836262 (or 7836258 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 313450040 is about 17704.5203267414. The cubic root of 313450040 is about 679.2913898602.

The spelling of 313450040 in words is "three hundred thirteen million, four hundred fifty thousand, forty".