231441994 has 20 divisors (see below), whose sum is σ = 405007794. Its totient is φ = 99187368.

The previous prime is 231441971. The next prime is 231442009. The reversal of 231441994 is 499144132.

231441994 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 only one way, i.e., 166074769 + 65367225 = 12887^2 + 8085^2 .

It is a super-3 number, since 3×231441994³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19297 + ... + 28900.

Almost surely, 2^231441994 is an apocalyptic number.

231441994 is a deficient number, since it is larger than the sum of its proper divisors (173565800).

231441994 is an frugal number, since it uses more digits than its factorization.

231441994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48227 (or 48206 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 231441994 is about 15213.2177398471. The cubic root of 231441994 is about 613.9703342378.

It can be divided in two parts, 231 and 441994, that added together give a square (442225 = 665²).

The spelling of 231441994 in words is "two hundred thirty-one million, four hundred forty-one thousand, nine hundred ninety-four".