22431404000 has 96 divisors (see below), whose sum is σ = 55602814176. Its totient is φ = 8892979200.

The previous prime is 22431403999. The next prime is 22431404003. The reversal of 22431404000 is 40413422.

It is a super-2 number, since 2×22431404000² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22431404003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427187 + ... + 476813.

It is an arithmetic number, because the mean of its divisors is an integer number (579195981).

Almost surely, 2^22431404000 is an apocalyptic number.

22431404000 is a gapful number since it is divisible by the number (20) 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 22431404000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27801407088).

22431404000 is an abundant number, since it is smaller than the sum of its proper divisors (33171410176).

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

22431404000 is a wasteful number, since it uses less digits than its factorization.

22431404000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49765 (or 49747 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22431404000 its reverse (40413422), we get a palindrome (22471817422).

The spelling of 22431404000 in words is "twenty-two billion, four hundred thirty-one million, four hundred four thousand".