320407871244 has 12 divisors (see below), whose sum is σ = 747618366264. Its totient is φ = 106802623744.

The previous prime is 320407871243. The next prime is 320407871269. The reversal of 320407871244 is 442178704023.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×320407871244² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320407871196 and 320407871205.

It is not an unprimeable number, because it can be changed into a prime (320407871243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13350327957 + ... + 13350327980.

It is an arithmetic number, because the mean of its divisors is an integer number (62301530522).

Almost surely, 2^320407871244 is an apocalyptic number.

It is an amenable number.

320407871244 is an abundant number, since it is smaller than the sum of its proper divisors (427210495020).

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

320407871244 is a wasteful number, since it uses less digits than its factorization.

320407871244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26700655944 (or 26700655942 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 42.

The spelling of 320407871244 in words is "three hundred twenty billion, four hundred seven million, eight hundred seventy-one thousand, two hundred forty-four".