22838157 has 12 divisors (see below), whose sum is σ = 34929180. Its totient is φ = 14329728.

The previous prime is 22838143. The next prime is 22838159. The reversal of 22838157 is 75183822.

22838157 is a `hidden beast` number, since 228 + 381 + 57 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15515721 + 7322436 = 3939^2 + 2706^2 .

It is not a de Polignac number, because 22838157 - 2⁴ = 22838141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22838159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74482 + ... + 74787.

It is an arithmetic number, because the mean of its divisors is an integer number (2910765).

Almost surely, 2^22838157 is an apocalyptic number.

It is an amenable number.

22838157 is a deficient number, since it is larger than the sum of its proper divisors (12091023).

22838157 is a wasteful number, since it uses less digits than its factorization.

22838157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149292 (or 149289 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 22838157 is about 4778.9284363757. The cubic root of 22838157 is about 283.7180838302.

It can be divided in two parts, 2283815 and 7, that added together give a palindrome (2283822).

The spelling of 22838157 in words is "twenty-two million, eight hundred thirty-eight thousand, one hundred fifty-seven".