22401440023420 has 48 divisors (see below), whose sum is σ = 47502594881280. Its totient is φ = 8873135622144.

The previous prime is 22401440023271. The next prime is 22401440023427. The reversal of 22401440023420 is 2432004410422.

It is a super-3 number, since 3×22401440023420³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22401440023427) 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, 671797 + ... + 6727123.

It is an arithmetic number, because the mean of its divisors is an integer number (989637393360).

Almost surely, 2^{22401440023420} is an apocalyptic number.

22401440023420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22401440023420 is an abundant number, since it is smaller than the sum of its proper divisors (25101154857860).

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

22401440023420 is a wasteful number, since it uses less digits than its factorization.

22401440023420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6057142 (or 6057140 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 22401440023420 its reverse (2432004410422), we get a palindrome (24833444433842).

The spelling of 22401440023420 in words is "twenty-two trillion, four hundred one billion, four hundred forty million, twenty-three thousand, four hundred twenty".