23912542 has 4 divisors (see below), whose sum is σ = 35868816. Its totient is φ = 11956270.

The previous prime is 23912533. The next prime is 23912543. The reversal of 23912542 is 24521932.

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 23912542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23912543) by changing a digit.

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 as a sum of consecutive naturals, namely, 5978134 + ... + 5978137.

It is an arithmetic number, because the mean of its divisors is an integer number (8967204).

Almost surely, 2^23912542 is an apocalyptic number.

23912542 is a deficient number, since it is larger than the sum of its proper divisors (11956274).

23912542 is a wasteful number, since it uses less digits than its factorization.

23912542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11956273.

The product of its digits is 4320, while the sum is 28.

The square root of 23912542 is about 4890.0451940652. The cubic root of 23912542 is about 288.0991090868.

The spelling of 23912542 in words is "twenty-three million, nine hundred twelve thousand, five hundred forty-two".