402620020404 has 96 divisors (see below), whose sum is σ = 1140245277696. Its totient is φ = 107940349440.

The previous prime is 402620020357. The next prime is 402620020433. The reversal of 402620020404 is 404020026204.

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 31 ways as a sum of consecutive naturals, for example, 46767 + ... + 898569.

It is an arithmetic number, because the mean of its divisors is an integer number (11877554976).

Almost surely, 2^402620020404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402620020404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (570122638848).

402620020404 is an abundant number, since it is smaller than the sum of its proper divisors (737625257292).

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

402620020404 is a wasteful number, since it uses less digits than its factorization.

402620020404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852165 (or 852163 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 402620020404 its reverse (404020026204), we get a palindrome (806640046608).

The spelling of 402620020404 in words is "four hundred two billion, six hundred twenty million, twenty thousand, four hundred four".