22400134431402 has 192 divisors, whose sum is σ = 58708618940160. Its totient is φ = 5547260049408.

The previous prime is 22400134431361. The next prime is 22400134431443. The reversal of 22400134431402 is 20413443100422.

It is an interprime number because it is at equal distance from previous prime (22400134431361) and next prime (22400134431443).

It is a self number, because there is not a number n which added to its sum of digits gives 22400134431402.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21770124 + ... + 22775832.

It is an arithmetic number, because the mean of its divisors is an integer number (305774056980).

Almost surely, 2^{22400134431402} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22400134431402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29354309470080).

22400134431402 is an abundant number, since it is smaller than the sum of its proper divisors (36308484508758).

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

22400134431402 is a wasteful number, since it uses less digits than its factorization.

22400134431402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005885 (or 1005866 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 22400134431402 its reverse (20413443100422), we get a palindrome (42813577531824).

The spelling of 22400134431402 in words is "twenty-two trillion, four hundred billion, one hundred thirty-four million, four hundred thirty-one thousand, four hundred two".