320023404402 has 32 divisors (see below), whose sum is σ = 694708611072. Its totient is φ = 97693392384.

The previous prime is 320023404383. The next prime is 320023404409. The reversal of 320023404402 is 204404320023.

It is not an unprimeable number, because it can be changed into a prime (320023404409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16143103 + ... + 16162914.

It is an arithmetic number, because the mean of its divisors is an integer number (21709644096).

Almost surely, 2^320023404402 is an apocalyptic number.

320023404402 is an abundant number, since it is smaller than the sum of its proper divisors (374685206670).

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

320023404402 is a wasteful number, since it uses less digits than its factorization.

320023404402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32306162.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 320023404402 its reverse (204404320023), we get a palindrome (524427724425).

The spelling of 320023404402 in words is "three hundred twenty billion, twenty-three million, four hundred four thousand, four hundred two".