402121043184 has 80 divisors (see below), whose sum is σ = 1187376503040. Its totient is φ = 114876049920.

The previous prime is 402121043183. The next prime is 402121043213. The reversal of 402121043184 is 481340121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402121043183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2506372 + ... + 2661980.

It is an arithmetic number, because the mean of its divisors is an integer number (14842206288).

Almost surely, 2^402121043184 is an apocalyptic number.

It is an amenable number.

402121043184 is an abundant number, since it is smaller than the sum of its proper divisors (785255459856).

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

402121043184 is a wasteful number, since it uses less digits than its factorization.

402121043184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163318 (or 163312 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

Adding to 402121043184 its reverse (481340121204), we get a palindrome (883461164388).

The spelling of 402121043184 in words is "four hundred two billion, one hundred twenty-one million, forty-three thousand, one hundred eighty-four".