232223440 has 20 divisors (see below), whose sum is σ = 539919684. Its totient is φ = 92889344.

The previous prime is 232223413. The next prime is 232223473. The reversal of 232223440 is 44322232.

It can be written as a sum of positive squares in 2 ways, for example, as 142277184 + 89946256 = 11928^2 + 9484^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1451317 + ... + 1451476.

Almost surely, 2^232223440 is an apocalyptic number.

232223440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232223440 is an abundant number, since it is smaller than the sum of its proper divisors (307696244).

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

232223440 is a wasteful number, since it uses less digits than its factorization.

232223440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902806 (or 2902800 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 232223440 is about 15238.8792238800. The cubic root of 232223440 is about 614.6605657711.

Adding to 232223440 its reverse (44322232), we get a palindrome (276545672).

It can be divided in two parts, 23222 and 3440, that added together give a palindrome (26662).

The spelling of 232223440 in words is "two hundred thirty-two million, two hundred twenty-three thousand, four hundred forty".