231413444 has 36 divisors (see below), whose sum is σ = 421699824. Its totient is φ = 111090672.

The previous prime is 231413411. The next prime is 231413473. The reversal of 231413444 is 444314132.

231413444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231413444² = 107104364127882272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 495299 + ... + 495765.

It is an arithmetic number, because the mean of its divisors is an integer number (11713884).

Almost surely, 2^231413444 is an apocalyptic number.

It is an amenable number.

231413444 is a deficient number, since it is larger than the sum of its proper divisors (190286380).

231413444 is a wasteful number, since it uses less digits than its factorization.

231413444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624 (or 579 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 231413444 is about 15212.2793821307. The cubic root of 231413444 is about 613.9450873447.

Adding to 231413444 its reverse (444314132), we get a palindrome (675727576).

The spelling of 231413444 in words is "two hundred thirty-one million, four hundred thirteen thousand, four hundred forty-four".