234221986 has 4 divisors (see below), whose sum is σ = 351332982. Its totient is φ = 117110992.

The previous prime is 234221959. The next prime is 234222007. The reversal of 234221986 is 689122432.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 182655225 + 51566761 = 13515^2 + 7181^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58555495 + ... + 58555498.

Almost surely, 2^234221986 is an apocalyptic number.

234221986 is a deficient number, since it is larger than the sum of its proper divisors (117110996).

234221986 is a wasteful number, since it uses less digits than its factorization.

234221986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117110995.

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

The square root of 234221986 is about 15304.3126601622. The cubic root of 234221986 is about 616.4188151599.

The spelling of 234221986 in words is "two hundred thirty-four million, two hundred twenty-one thousand, nine hundred eighty-six".