402323401020 has 24 divisors (see below), whose sum is σ = 1126505523024. Its totient is φ = 107286240256.

The previous prime is 402323401019. The next prime is 402323401033. The reversal of 402323401020 is 20104323204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3352694949 + ... + 3352695068.

It is an arithmetic number, because the mean of its divisors is an integer number (46937730126).

Almost surely, 2^402323401020 is an apocalyptic number.

It is an amenable number.

402323401020 is an abundant number, since it is smaller than the sum of its proper divisors (724182122004).

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

402323401020 is a wasteful number, since it uses less digits than its factorization.

402323401020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6705390029 (or 6705390027 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 402323401020 its reverse (20104323204), we get a palindrome (422427724224).

The spelling of 402323401020 in words is "four hundred two billion, three hundred twenty-three million, four hundred one thousand, twenty".