234218379 has 4 divisors (see below), whose sum is σ = 312291176. Its totient is φ = 156145584.

The previous prime is 234218371. The next prime is 234218389. The reversal of 234218379 is 973812432.

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

It is not a de Polignac number, because 234218379 - 2³ = 234218371 is a prime.

It is a super-2 number, since 2×234218379² = 109716498122775282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234218371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39036394 + ... + 39036399.

It is an arithmetic number, because the mean of its divisors is an integer number (78072794).

Almost surely, 2^234218379 is an apocalyptic number.

234218379 is a deficient number, since it is larger than the sum of its proper divisors (78072797).

234218379 is an equidigital number, since it uses as much as digits as its factorization.

234218379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78072796.

The product of its digits is 72576, while the sum is 39.

The square root of 234218379 is about 15304.1948171082. The cubic root of 234218379 is about 616.4156508768.

The spelling of 234218379 in words is "two hundred thirty-four million, two hundred eighteen thousand, three hundred seventy-nine".