238141890 has 64 divisors (see below), whose sum is σ = 725771520. Its totient is φ = 54432000.

The previous prime is 238141873. The next prime is 238141901. The reversal of 238141890 is 98141832.

238141890 is a `hidden beast` number, since 238 + 1 + 418 + 9 + 0 = 666.

238141890 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61111 + ... + 64890.

It is an arithmetic number, because the mean of its divisors is an integer number (11340180).

Almost surely, 2^238141890 is an apocalyptic number.

238141890 is an abundant number, since it is smaller than the sum of its proper divisors (487629630).

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

238141890 is a wasteful number, since it uses less digits than its factorization.

238141890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126024 (or 126018 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 238141890 is about 15431.8466166561. The cubic root of 238141890 is about 619.8385722638.

The spelling of 238141890 in words is "two hundred thirty-eight million, one hundred forty-one thousand, eight hundred ninety".