234978018 has 32 divisors (see below), whose sum is σ = 515773440. Its totient is φ = 70775760.

The previous prime is 234978017. The next prime is 234978031. The reversal of 234978018 is 810879432.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (234978017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363 + ... + 21681.

It is an arithmetic number, because the mean of its divisors is an integer number (16117920).

Almost surely, 2^234978018 is an apocalyptic number.

234978018 is an abundant number, since it is smaller than the sum of its proper divisors (280795422).

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

234978018 is a wasteful number, since it uses less digits than its factorization.

234978018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21502.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 234978018 is about 15328.9927262035. The cubic root of 234978018 is about 617.0813373941.

The spelling of 234978018 in words is "two hundred thirty-four million, nine hundred seventy-eight thousand, eighteen".