238490 has 16 divisors (see below), whose sum is σ = 490752. Its totient is φ = 81744.

The previous prime is 238481. The next prime is 238499. The reversal of 238490 is 94832.

It is an interprime number because it is at equal distance from previous prime (238481) and next prime (238499).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (238499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1634 + ... + 1773.

It is an arithmetic number, because the mean of its divisors is an integer number (30672).

2²³⁸⁴⁹⁰ is an apocalyptic number.

238490 is an abundant number, since it is smaller than the sum of its proper divisors (252262).

It is a weird number, because it is abundant, but not a pseudoperfect number.

238490 is a wasteful number, since it uses less digits than its factorization.

238490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3421.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 238490 is about 488.3543795237. The cubic root of 238490 is about 62.0140446851.

The spelling of 238490 in words is "two hundred thirty-eight thousand, four hundred ninety".