313261040 has 40 divisors (see below), whose sum is σ = 771178320. Its totient is φ = 117933056.

The previous prime is 313261021. The next prime is 313261051. The reversal of 313261040 is 40162313.

313261040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

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

It is a congruent number.

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, 113810 + ... + 116529.

It is an arithmetic number, because the mean of its divisors is an integer number (19279458).

Almost surely, 2^313261040 is an apocalyptic number.

It is an amenable number.

313261040 is an abundant number, since it is smaller than the sum of its proper divisors (457917280).

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

313261040 is a wasteful number, since it uses less digits than its factorization.

313261040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230369 (or 230363 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 313261040 is about 17699.1819019976. The cubic root of 313261040 is about 679.1548323346.

The spelling of 313261040 in words is "three hundred thirteen million, two hundred sixty-one thousand, forty".