402102031404 has 24 divisors (see below), whose sum is σ = 949542148800. Its totient is φ = 132419142544.

The previous prime is 402102031369. The next prime is 402102031421. The reversal of 402102031404 is 404130201204.

It is a super-2 number, since 2×402102031404² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 201857454 + ... + 201859445.

It is an arithmetic number, because the mean of its divisors is an integer number (39564256200).

Almost surely, 2^402102031404 is an apocalyptic number.

It is an amenable number.

402102031404 is an abundant number, since it is smaller than the sum of its proper divisors (547440117396).

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

402102031404 is a wasteful number, since it uses less digits than its factorization.

402102031404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403716989 (or 403716987 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 402102031404 its reverse (404130201204), we get a palindrome (806232232608).

The spelling of 402102031404 in words is "four hundred two billion, one hundred two million, thirty-one thousand, four hundred four".