22245377238 has 48 divisors (see below), whose sum is σ = 55097037216. Its totient is φ = 6354293760.

The previous prime is 22245377197. The next prime is 22245377243. The reversal of 22245377238 is 83277354222.

22245377238 is a `hidden beast` number, since 2 + 2 + 2 + 45 + 377 + 238 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 22245377193 and 22245377202.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 569908 + ... + 607688.

It is an arithmetic number, because the mean of its divisors is an integer number (1147854942).

Almost surely, 2^22245377238 is an apocalyptic number.

22245377238 is an abundant number, since it is smaller than the sum of its proper divisors (32851659978).

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

22245377238 is a wasteful number, since it uses less digits than its factorization.

22245377238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42469 (or 42466 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 45.

The spelling of 22245377238 in words is "twenty-two billion, two hundred forty-five million, three hundred seventy-seven thousand, two hundred thirty-eight".