22327640442 has 48 divisors (see below), whose sum is σ = 50628658080. Its totient is φ = 7374249072.

The previous prime is 22327640437. The next prime is 22327640453. The reversal of 22327640442 is 24404672322.

22327640442 is a `hidden beast` number, since 2 + 2 + 3 + 2 + 7 + 640 + 4 + 4 + 2 = 666.

It is a super-3 number, since 3×22327640442³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22327640397 and 22327640406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157768 + ... + 263715.

It is an arithmetic number, because the mean of its divisors is an integer number (1054763710).

Almost surely, 2^22327640442 is an apocalyptic number.

22327640442 is an abundant number, since it is smaller than the sum of its proper divisors (28301017638).

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

22327640442 is a wasteful number, since it uses less digits than its factorization.

22327640442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421609 (or 421597 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 36.

The spelling of 22327640442 in words is "twenty-two billion, three hundred twenty-seven million, six hundred forty thousand, four hundred forty-two".