22640706032 has 40 divisors (see below), whose sum is σ = 50232784896. Its totient is φ = 9683845056.

The previous prime is 22640706017. The next prime is 22640706037. The reversal of 22640706032 is 23060704622.

It is a self number, because there is not a number n which added to its sum of digits gives 22640706032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22640706037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144608 + ... + 257279.

Almost surely, 2^22640706032 is an apocalyptic number.

It is an amenable number.

22640706032 is an abundant number, since it is smaller than the sum of its proper divisors (27592078864).

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

22640706032 is a wasteful number, since it uses less digits than its factorization.

22640706032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402405 (or 402399 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The spelling of 22640706032 in words is "twenty-two billion, six hundred forty million, seven hundred six thousand, thirty-two".