402144100000 has 144 divisors (see below), whose sum is σ = 991694340000. Its totient is φ = 160515360000.

The previous prime is 402144099991. The next prime is 402144100081. The reversal of 402144100000 is 1441204.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49895971 + ... + 49904029.

It is an arithmetic number, because the mean of its divisors is an integer number (6886766250).

Almost surely, 2^402144100000 is an apocalyptic number.

402144100000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402144100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (495847170000).

402144100000 is an abundant number, since it is smaller than the sum of its proper divisors (589550240000).

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

402144100000 is an frugal number, since it uses more digits than its factorization.

402144100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8593 (or 8565 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 402144100000 its reverse (1441204), we get a palindrome (402145541204).

The spelling of 402144100000 in words is "four hundred two billion, one hundred forty-four million, one hundred thousand".