234381 has 8 divisors (see below), whose sum is σ = 357184. Its totient is φ = 133920.

The previous prime is 234361. The next prime is 234383. The reversal of 234381 is 183432.

It is a happy number.

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

It is not a de Polignac number, because 234381 - 2⁶ = 234317 is a prime.

It is a super-2 number, since 2×234381² = 109868906322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 11161 = 234381 / (2 + 3 + 4 + 3 + 8 + 1).

It is an Ulam number.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234383) 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, 5560 + ... + 5601.

It is an arithmetic number, because the mean of its divisors is an integer number (44648).

2²³⁴³⁸¹ is an apocalyptic number.

234381 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

234381 is a deficient number, since it is larger than the sum of its proper divisors (122803).

234381 is a wasteful number, since it uses less digits than its factorization.

234381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11171.

The product of its digits is 576, while the sum is 21.

The square root of 234381 is about 484.1291150096. The cubic root of 234381 is about 61.6558279790.

The spelling of 234381 in words is "two hundred thirty-four thousand, three hundred eighty-one".