23432138 has 8 divisors (see below), whose sum is σ = 35195232. Its totient is φ = 11700396.

The previous prime is 23432107. The next prime is 23432141. The reversal of 23432138 is 83123432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5870 + ... + 9017.

It is an arithmetic number, because the mean of its divisors is an integer number (4399404).

Almost surely, 2^23432138 is an apocalyptic number.

23432138 is a deficient number, since it is larger than the sum of its proper divisors (11763094).

23432138 is a wasteful number, since it uses less digits than its factorization.

23432138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15676.

The product of its digits is 3456, while the sum is 26.

The square root of 23432138 is about 4840.6753661034. The cubic root of 23432138 is about 286.1567351240.

The spelling of 23432138 in words is "twenty-three million, four hundred thirty-two thousand, one hundred thirty-eight".