320404342408 has 16 divisors (see below), whose sum is σ = 601440060060. Its totient is φ = 160020326400.

The previous prime is 320404342387. The next prime is 320404342441. The reversal of 320404342408 is 804243404023.

It can be written as a sum of positive squares in 2 ways, for example, as 297742652964 + 22661689444 = 545658^2 + 150538^2 .

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, 22723113 + ... + 22737208.

Almost surely, 2^320404342408 is an apocalyptic number.

It is an amenable number.

320404342408 is a deficient number, since it is larger than the sum of its proper divisors (281035717652).

320404342408 is a wasteful number, since it uses less digits than its factorization.

320404342408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45461208 (or 45461204 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

The spelling of 320404342408 in words is "three hundred twenty billion, four hundred four million, three hundred forty-two thousand, four hundred eight".