320426676340 has 24 divisors (see below), whose sum is σ = 712478139912. Its totient is φ = 120631219200.

The previous prime is 320426676331. The next prime is 320426676341. The reversal of 320426676340 is 43676624023.

It can be written as a sum of positive squares in 4 ways, for example, as 121735396836 + 198691279504 = 348906^2 + 445748^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320426676341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471215361 + ... + 471216040.

It is an arithmetic number, because the mean of its divisors is an integer number (29686589163).

Almost surely, 2^320426676340 is an apocalyptic number.

It is an amenable number.

320426676340 is an abundant number, since it is smaller than the sum of its proper divisors (392051463572).

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

320426676340 is a wasteful number, since it uses less digits than its factorization.

320426676340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942431427 (or 942431425 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 43.

The spelling of 320426676340 in words is "three hundred twenty billion, four hundred twenty-six million, six hundred seventy-six thousand, three hundred forty".