22240440402 has 32 divisors (see below), whose sum is σ = 46044633600. Its totient is φ = 7153187328.

The previous prime is 22240440401. The next prime is 22240440457. The reversal of 22240440402 is 20404404222.

It is not an unprimeable number, because it can be changed into a prime (22240440401) 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, 231874 + ... + 313442.

It is an arithmetic number, because the mean of its divisors is an integer number (1438894800).

Almost surely, 2^22240440402 is an apocalyptic number.

22240440402 is an abundant number, since it is smaller than the sum of its proper divisors (23804193198).

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

22240440402 is a wasteful number, since it uses less digits than its factorization.

22240440402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83170.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 22240440402 its reverse (20404404222), we get a palindrome (42644844624).

The spelling of 22240440402 in words is "twenty-two billion, two hundred forty million, four hundred forty thousand, four hundred two".