402044000000 has 126 divisors (see below), whose sum is σ = 1003144034592. Its totient is φ = 160816000000.

The previous prime is 402043999993. The next prime is 402044000009. The reversal of 402044000000 is 440204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402044000009) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3949745 + ... + 4050255.

It is an arithmetic number, because the mean of its divisors is an integer number (7961460592).

Almost surely, 2^402044000000 is an apocalyptic number.

402044000000 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 402044000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (501572017296).

402044000000 is an abundant number, since it is smaller than the sum of its proper divisors (601100034592).

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

402044000000 is an frugal number, since it uses more digits than its factorization.

402044000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100557 (or 100518 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 402044000000 its reverse (440204), we get a palindrome (402044440204).

The spelling of 402044000000 in words is "four hundred two billion, forty-four million", and thus it is an aban number.