234478 has 4 divisors (see below), whose sum is σ = 351720. Its totient is φ = 117238.

The previous prime is 234473. The next prime is 234499. The reversal of 234478 is 874432.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58618 + ... + 58621.

It is an arithmetic number, because the mean of its divisors is an integer number (87930).

2²³⁴⁴⁷⁸ is an apocalyptic number.

234478 is a deficient number, since it is larger than the sum of its proper divisors (117242).

234478 is a wasteful number, since it uses less digits than its factorization.

234478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117241.

The product of its digits is 5376, while the sum is 28.

The square root of 234478 is about 484.2292845337. The cubic root of 234478 is about 61.6643323522.

The spelling of 234478 in words is "two hundred thirty-four thousand, four hundred seventy-eight".