23143432 has 16 divisors (see below), whose sum is σ = 46732140. Its totient is φ = 10681536.

The previous prime is 23143429. The next prime is 23143459. The reversal of 23143432 is 23434132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23097636 + 45796 = 4806^2 + 214^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111163 + ... + 111370.

Almost surely, 2^23143432 is an apocalyptic number.

It is an amenable number.

23143432 is an abundant number, since it is smaller than the sum of its proper divisors (23588708).

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

23143432 is a wasteful number, since it uses less digits than its factorization.

23143432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222552 (or 222548 counting only the distinct ones).

The product of its digits is 1728, while the sum is 22.

The square root of 23143432 is about 4810.7621017880. The cubic root of 23143432 is about 284.9766349985.

Adding to 23143432 its reverse (23434132), we get a palindrome (46577564).

The spelling of 23143432 in words is "twenty-three million, one hundred forty-three thousand, four hundred thirty-two".