402818301844 has 24 divisors (see below), whose sum is σ = 807796508288. Its totient is φ = 172173578400.

The previous prime is 402818301841. The next prime is 402818301857. The reversal of 402818301844 is 448103818204.

It is a self number, because there is not a number n which added to its sum of digits gives 402818301844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402818301841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19274232 + ... + 19295119.

Almost surely, 2^402818301844 is an apocalyptic number.

It is an amenable number.

402818301844 is an abundant number, since it is smaller than the sum of its proper divisors (404978206444).

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

402818301844 is a wasteful number, since it uses less digits than its factorization.

402818301844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38569735 (or 38569733 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 43.

The spelling of 402818301844 in words is "four hundred two billion, eight hundred eighteen million, three hundred one thousand, eight hundred forty-four".