22338157 has 4 divisors (see below), whose sum is σ = 22514176. Its totient is φ = 22162140.

The previous prime is 22338143. The next prime is 22338163. The reversal of 22338157 is 75183322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22338157 - 2¹¹ = 22336109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22338137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87819 + ... + 88072.

It is an arithmetic number, because the mean of its divisors is an integer number (5628544).

Almost surely, 2^22338157 is an apocalyptic number.

It is an amenable number.

22338157 is a deficient number, since it is larger than the sum of its proper divisors (176019).

22338157 is a wasteful number, since it uses less digits than its factorization.

22338157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176018.

The product of its digits is 10080, while the sum is 31.

The square root of 22338157 is about 4726.3259515188. The cubic root of 22338157 is about 281.6322898808.

The spelling of 22338157 in words is "twenty-two million, three hundred thirty-eight thousand, one hundred fifty-seven".