238904122 has 4 divisors (see below), whose sum is σ = 358356186. Its totient is φ = 119452060.

The previous prime is 238904101. The next prime is 238904123. The reversal of 238904122 is 221409832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 135047641 + 103856481 = 11621^2 + 10191^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (238904123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59726029 + ... + 59726032.

Almost surely, 2^238904122 is an apocalyptic number.

238904122 is a deficient number, since it is larger than the sum of its proper divisors (119452064).

238904122 is a wasteful number, since it uses less digits than its factorization.

238904122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119452063.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 238904122 is about 15456.5236065553. The cubic root of 238904122 is about 620.4991834834.

The spelling of 238904122 in words is "two hundred thirty-eight million, nine hundred four thousand, one hundred twenty-two".