922172238 has 96 divisors (see below), whose sum is σ = 2262195936. Its totient is φ = 269547264.

The previous prime is 922172233. The next prime is 922172249. The reversal of 922172238 is 832271229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (922172231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 371056 + ... + 373532.

It is an arithmetic number, because the mean of its divisors is an integer number (23564541).

Almost surely, 2^922172238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 922172238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1131097968).

922172238 is an abundant number, since it is smaller than the sum of its proper divisors (1340023698).

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

922172238 is a wasteful number, since it uses less digits than its factorization.

922172238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578 (or 2575 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 922172238 is about 30367.2889471550. The cubic root of 922172238 is about 973.3536935390.

The spelling of 922172238 in words is "nine hundred twenty-two million, one hundred seventy-two thousand, two hundred thirty-eight".