22400003123400 has 192 divisors, whose sum is σ = 79374656304000. Its totient is φ = 5119055861760.

The previous prime is 22400003123389. The next prime is 22400003123423. The reversal of 22400003123400 is 432130000422.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22396414 + ... + 23375186.

It is an arithmetic number, because the mean of its divisors is an integer number (413409668250).

Almost surely, 2^{22400003123400} is an apocalyptic number.

22400003123400 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 22400003123400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39687328152000).

22400003123400 is an abundant number, since it is smaller than the sum of its proper divisors (56974653180600).

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

22400003123400 is a wasteful number, since it uses less digits than its factorization.

22400003123400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984248 (or 984239 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22400003123400 its reverse (432130000422), we get a palindrome (22832133123822).

The spelling of 22400003123400 in words is "twenty-two trillion, four hundred billion, three million, one hundred twenty-three thousand, four hundred".