22838836440 has 128 divisors (see below), whose sum is σ = 78335424000. Its totient is φ = 5218249728.

The previous prime is 22838836411. The next prime is 22838836459. The reversal of 22838836440 is 4463883822.

It is a super-2 number, since 2×22838836440² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22838836440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3473476 + ... + 3480044.

It is an arithmetic number, because the mean of its divisors is an integer number (611995500).

Almost surely, 2^22838836440 is an apocalyptic number.

22838836440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22838836440 is an abundant number, since it is smaller than the sum of its proper divisors (55496587560).

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

22838836440 is a wasteful number, since it uses less digits than its factorization.

22838836440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10729 (or 10725 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 48.

The spelling of 22838836440 in words is "twenty-two billion, eight hundred thirty-eight million, eight hundred thirty-six thousand, four hundred forty".