22535040402 has 256 divisors, whose sum is σ = 62424576000. Its totient is φ = 5882015232.

The previous prime is 22535040361. The next prime is 22535040419. The reversal of 22535040402 is 20404053522.

It is a happy number.

22535040402 is a `hidden beast` number, since 2 + 253 + 5 + 0 + 4 + 0 + 402 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 36405249 + ... + 36405867.

It is an arithmetic number, because the mean of its divisors is an integer number (243846000).

Almost surely, 2^22535040402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22535040402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31212288000).

22535040402 is an abundant number, since it is smaller than the sum of its proper divisors (39889535598).

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

22535040402 is a wasteful number, since it uses less digits than its factorization.

22535040402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830 (or 824 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 22535040402 its reverse (20404053522), we get a palindrome (42939093924).

The spelling of 22535040402 in words is "twenty-two billion, five hundred thirty-five million, forty thousand, four hundred two".