234221312 has 36 divisors (see below), whose sum is σ = 503498520. Its totient is φ = 108100608.

The previous prime is 234221311. The next prime is 234221329. The reversal of 234221312 is 213122432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234221311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31862 + ... + 38517.

It is an arithmetic number, because the mean of its divisors is an integer number (13986070).

Almost surely, 2^234221312 is an apocalyptic number.

It is an amenable number.

234221312 is an abundant number, since it is smaller than the sum of its proper divisors (269277208).

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

234221312 is an equidigital number, since it uses as much as digits as its factorization.

234221312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70408 (or 70394 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 234221312 is about 15304.2906402094. The cubic root of 234221312 is about 616.4182238880.

Adding to 234221312 its reverse (213122432), we get a palindrome (447343744).

The spelling of 234221312 in words is "two hundred thirty-four million, two hundred twenty-one thousand, three hundred twelve".