22640244454 has 16 divisors (see below), whose sum is σ = 34338574368. Its totient is φ = 11194244352.

The previous prime is 22640244449. The next prime is 22640244457. The reversal of 22640244454 is 45444204622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22640244457) 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, 192807 + ... + 287149.

It is an arithmetic number, because the mean of its divisors is an integer number (2146160898).

Almost surely, 2^22640244454 is an apocalyptic number.

22640244454 is a deficient number, since it is larger than the sum of its proper divisors (11698329914).

22640244454 is a wasteful number, since it uses less digits than its factorization.

22640244454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95679.

The product of its (nonzero) digits is 245760, while the sum is 37.

The spelling of 22640244454 in words is "twenty-two billion, six hundred forty million, two hundred forty-four thousand, four hundred fifty-four".