22040826640 has 40 divisors (see below), whose sum is σ = 58565626560. Its totient is φ = 7556854656.

The previous prime is 22040826631. The next prime is 22040826641. The reversal of 22040826640 is 4662804022.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 22040826596 and 22040826605.

It is not an unprimeable number, because it can be changed into a prime (22040826641) 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, 19678750 + ... + 19679869.

It is an arithmetic number, because the mean of its divisors is an integer number (1464140664).

Almost surely, 2^22040826640 is an apocalyptic number.

22040826640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22040826640 is an abundant number, since it is smaller than the sum of its proper divisors (36524799920).

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

22040826640 is a wasteful number, since it uses less digits than its factorization.

22040826640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39358639 (or 39358633 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The spelling of 22040826640 in words is "twenty-two billion, forty million, eight hundred twenty-six thousand, six hundred forty".