220002402400 has 72 divisors (see below), whose sum is σ = 585906421464. Its totient is φ = 80000870400.

The previous prime is 220002402397. The next prime is 220002402407. The reversal of 220002402400 is 4204200022.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220002402407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12491337 + ... + 12508936.

It is an arithmetic number, because the mean of its divisors is an integer number (8137589187).

Almost surely, 2^220002402400 is an apocalyptic number.

220002402400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220002402400 is an abundant number, since it is smaller than the sum of its proper divisors (365904019064).

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

220002402400 is a wasteful number, since it uses less digits than its factorization.

220002402400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25000304 (or 25000291 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 220002402400 its reverse (4204200022), we get a palindrome (224206602422).

The spelling of 220002402400 in words is "two hundred twenty billion, two million, four hundred two thousand, four hundred".