238169838 has 32 divisors (see below), whose sum is σ = 493396992. Its totient is φ = 76564800.

The previous prime is 238169809. The next prime is 238169839. The reversal of 238169838 is 838961832.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238169839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56173 + ... + 60263.

It is an arithmetic number, because the mean of its divisors is an integer number (15418656).

Almost surely, 2^238169838 is an apocalyptic number.

238169838 is an abundant number, since it is smaller than the sum of its proper divisors (255227154).

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

238169838 is a wasteful number, since it uses less digits than its factorization.

238169838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4440.

The product of its digits is 497664, while the sum is 48.

The square root of 238169838 is about 15432.7521200854. The cubic root of 238169838 is about 619.8628191120.

The spelling of 238169838 in words is "two hundred thirty-eight million, one hundred sixty-nine thousand, eight hundred thirty-eight".