234401986 has 36 divisors (see below), whose sum is σ = 442921122. Its totient is φ = 92723904.

The previous prime is 234401977. The next prime is 234402013. The reversal of 234401986 is 689104432.

234401986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 103734225 + 130667761 = 10185^2 + 11431^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9486 + ... + 23638.

Almost surely, 2^234401986 is an apocalyptic number.

234401986 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

234401986 is a deficient number, since it is larger than the sum of its proper divisors (208519136).

234401986 is a wasteful number, since it uses less digits than its factorization.

234401986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14195 (or 14175 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 234401986 is about 15310.1922260957. The cubic root of 234401986 is about 616.5766810341.

The spelling of 234401986 in words is "two hundred thirty-four million, four hundred one thousand, nine hundred eighty-six".