232220331 has 16 divisors (see below), whose sum is σ = 393177600. Its totient is φ = 132697224.

The previous prime is 232220327. The next prime is 232220353. The reversal of 232220331 is 133022232.

It is a happy number.

It is not a de Polignac number, because 232220331 - 2² = 232220327 is a prime.

It is a super-2 number, since 2×232220331² = 107852564259499122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (232220531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 614151 + ... + 614528.

It is an arithmetic number, because the mean of its divisors is an integer number (24573600).

Almost surely, 2^232220331 is an apocalyptic number.

232220331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

232220331 is a deficient number, since it is larger than the sum of its proper divisors (160957269).

232220331 is a wasteful number, since it uses less digits than its factorization.

232220331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228695 (or 1228689 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 232220331 is about 15238.7772147243. Note that the first 3 decimals coincide. The cubic root of 232220331 is about 614.6578227402.

Adding to 232220331 its reverse (133022232), we get a palindrome (365242563).

The spelling of 232220331 in words is "two hundred thirty-two million, two hundred twenty thousand, three hundred thirty-one".