23644722442 has 64 divisors (see below), whose sum is σ = 42800099328. Its totient is φ = 9670752000.

The previous prime is 23644722419. The next prime is 23644722443. The reversal of 23644722442 is 24422744632.

It is a junction number, because it is equal to n+sod(n) for n = 23644722395 and 23644722404.

It is not an unprimeable number, because it can be changed into a prime (23644722443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 950017 + ... + 974587.

It is an arithmetic number, because the mean of its divisors is an integer number (668751552).

Almost surely, 2^23644722442 is an apocalyptic number.

23644722442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23644722442 is a deficient number, since it is larger than the sum of its proper divisors (19155376886).

23644722442 is a wasteful number, since it uses less digits than its factorization.

23644722442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24715.

The product of its digits is 516096, while the sum is 40.

The spelling of 23644722442 in words is "twenty-three billion, six hundred forty-four million, seven hundred twenty-two thousand, four hundred forty-two".