20404244000 has 96 divisors (see below), whose sum is σ = 57295195776. Its totient is φ = 6995731200.

The previous prime is 20404243973. The next prime is 20404244093. The reversal of 20404244000 is 44240402.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336362 + ... + 392361.

It is an arithmetic number, because the mean of its divisors is an integer number (596824956).

Almost surely, 2^20404244000 is an apocalyptic number.

20404244000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20404244000 is an abundant number, since it is smaller than the sum of its proper divisors (36890951776).

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

20404244000 is an equidigital number, since it uses as much as digits as its factorization.

20404244000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728755 (or 728737 counting only the distinct ones).

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

Adding to 20404244000 its reverse (44240402), we get a palindrome (20448484402).

The spelling of 20404244000 in words is "twenty billion, four hundred four million, two hundred forty-four thousand".