22338814640 has 80 divisors (see below), whose sum is σ = 55041120000. Its totient is φ = 8402534400.

The previous prime is 22338814621. The next prime is 22338814651. The reversal of 22338814640 is 4641883322.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1692065 + ... + 1705215.

It is an arithmetic number, because the mean of its divisors is an integer number (688014000).

Almost surely, 2^22338814640 is an apocalyptic number.

22338814640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22338814640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27520560000).

22338814640 is an abundant number, since it is smaller than the sum of its proper divisors (32702305360).

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

22338814640 is a wasteful number, since it uses less digits than its factorization.

22338814640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14430 (or 14424 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 22338814640 in words is "twenty-two billion, three hundred thirty-eight million, eight hundred fourteen thousand, six hundred forty".