22444404140400 has 120 divisors (see below), whose sum is σ = 78432990514944. Its totient is φ = 5441067667200.

The previous prime is 22444404140393. The next prime is 22444404140401. The reversal of 22444404140400 is 404140444422.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22444404140401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 850153624 + ... + 850180023.

Almost surely, 2^{22444404140400} is an apocalyptic number.

22444404140400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22444404140400 is an abundant number, since it is smaller than the sum of its proper divisors (55988586374544).

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

22444404140400 is a wasteful number, since it uses less digits than its factorization.

22444404140400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700333679 (or 1700333668 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 33.

Adding to 22444404140400 its reverse (404140444422), we get a palindrome (22848544584822).

The spelling of 22444404140400 in words is "twenty-two trillion, four hundred forty-four billion, four hundred four million, one hundred forty thousand, four hundred".