23664142 has 4 divisors (see below), whose sum is σ = 35496216. Its totient is φ = 11832070.

The previous prime is 23664103. The next prime is 23664143. The reversal of 23664142 is 24146632.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23664142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23664143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5916034 + ... + 5916037.

It is an arithmetic number, because the mean of its divisors is an integer number (8874054).

Almost surely, 2^23664142 is an apocalyptic number.

23664142 is a deficient number, since it is larger than the sum of its proper divisors (11832074).

23664142 is a wasteful number, since it uses less digits than its factorization.

23664142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11832073.

The product of its digits is 6912, while the sum is 28.

The square root of 23664142 is about 4864.5803518906. The cubic root of 23664142 is about 287.0980576037.

The spelling of 23664142 in words is "twenty-three million, six hundred sixty-four thousand, one hundred forty-two".