402200044400 has 240 divisors, whose sum is σ = 1216425619968. Its totient is φ = 124142976000.

The previous prime is 402200044313. The next prime is 402200044439. The reversal of 402200044400 is 4440002204.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3109010 + ... + 3235790.

Almost surely, 2^402200044400 is an apocalyptic number.

402200044400 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 402200044400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608212809984).

402200044400 is an abundant number, since it is smaller than the sum of its proper divisors (814225575568).

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

402200044400 is a wasteful number, since it uses less digits than its factorization.

402200044400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126920 (or 126909 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 402200044400 its reverse (4440002204), we get a palindrome (406640046604).

The spelling of 402200044400 in words is "four hundred two billion, two hundred million, forty-four thousand, four hundred".