231223446 has 24 divisors (see below), whose sum is σ = 502341840. Its totient is φ = 76865616.

The previous prime is 231223423. The next prime is 231223463. The reversal of 231223446 is 644322132.

231223446 is a `hidden beast` number, since 2 + 312 + 2 + 344 + 6 = 666.

It is a super-2 number, since 2×231223446² = 106928563960229832, which contains 22 as substring.

It is a congruent number.

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, 10506 + ... + 23933.

It is an arithmetic number, because the mean of its divisors is an integer number (20930910).

Almost surely, 2^231223446 is an apocalyptic number.

231223446 is an abundant number, since it is smaller than the sum of its proper divisors (271118394).

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

231223446 is a wasteful number, since it uses less digits than its factorization.

231223446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34820 (or 34817 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 231223446 is about 15206.0332105385. The cubic root of 231223446 is about 613.7770183462. Note that the first 3 decimals are identical.

Adding to 231223446 its reverse (644322132), we get a palindrome (875545578).

The spelling of 231223446 in words is "two hundred thirty-one million, two hundred twenty-three thousand, four hundred forty-six".