402200044440 has 128 divisors (see below), whose sum is σ = 1222284245760. Its totient is φ = 105866463744.

The previous prime is 402200044439. The next prime is 402200044451. The reversal of 402200044440 is 44440002204.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 402200044440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3500139 + ... + 3613221.

It is an arithmetic number, because the mean of its divisors is an integer number (9549095670).

Almost surely, 2^402200044440 is an apocalyptic number.

402200044440 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 402200044440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611142122880).

402200044440 is an abundant number, since it is smaller than the sum of its proper divisors (820084201320).

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

402200044440 is a wasteful number, since it uses less digits than its factorization.

402200044440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113481 (or 113477 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 402200044440 its reverse (44440002204), we get a palindrome (446640046644).

The spelling of 402200044440 in words is "four hundred two billion, two hundred million, forty-four thousand, four hundred forty".