234345678 has 32 divisors (see below), whose sum is σ = 552929280. Its totient is φ = 64795680.

The previous prime is 234345667. The next prime is 234345691. The reversal of 234345678 is 876543432.

234345678 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (42).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88693 + ... + 91296.

It is an arithmetic number, because the mean of its divisors is an integer number (17279040).

Almost surely, 2^234345678 is an apocalyptic number.

234345678 is an abundant number, since it is smaller than the sum of its proper divisors (318583602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

234345678 is a wasteful number, since it uses less digits than its factorization.

234345678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180032.

The product of its digits is 483840, while the sum is 42.

The square root of 234345678 is about 15308.3532099308. The cubic root of 234345678 is about 616.5273057697.

The spelling of 234345678 in words is "two hundred thirty-four million, three hundred forty-five thousand, six hundred seventy-eight".