238819 has 8 divisors (see below), whose sum is σ = 276320. Its totient is φ = 202176.

The previous prime is 238801. The next prime is 238829. The reversal of 238819 is 918832.

238819 = 197² + 198² + ... + 202².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 238819 - 2⁷ = 238691 is a prime.

It is a super-2 number, since 2×238819² = 114069029522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238829) 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, 607 + ... + 919.

It is an arithmetic number, because the mean of its divisors is an integer number (34540).

2²³⁸⁸¹⁹ is an apocalyptic number.

238819 is a deficient number, since it is larger than the sum of its proper divisors (37501).

238819 is a wasteful number, since it uses less digits than its factorization.

238819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429.

The product of its digits is 3456, while the sum is 31.

The square root of 238819 is about 488.6911089840. The cubic root of 238819 is about 62.0425479710.

The spelling of 238819 in words is "two hundred thirty-eight thousand, eight hundred nineteen".