22930371438 has 64 divisors (see below), whose sum is σ = 50451351552. Its totient is φ = 6905122560.

The previous prime is 22930371437. The next prime is 22930371449. The reversal of 22930371438 is 83417303922.

It is a self number, because there is not a number n which added to its sum of digits gives 22930371438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22930371437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 743595 + ... + 773817.

It is an arithmetic number, because the mean of its divisors is an integer number (788302368).

Almost surely, 2^22930371438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22930371438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25225675776).

22930371438 is an abundant number, since it is smaller than the sum of its proper divisors (27520980114).

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

22930371438 is a wasteful number, since it uses less digits than its factorization.

22930371438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30449.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 22930371438 in words is "twenty-two billion, nine hundred thirty million, three hundred seventy-one thousand, four hundred thirty-eight".