23858542 has 4 divisors (see below), whose sum is σ = 35787816. Its totient is φ = 11929270.

The previous prime is 23858489. The next prime is 23858543. The reversal of 23858542 is 24585832.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23858543) 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, 5964634 + ... + 5964637.

It is an arithmetic number, because the mean of its divisors is an integer number (8946954).

Almost surely, 2^23858542 is an apocalyptic number.

23858542 is a deficient number, since it is larger than the sum of its proper divisors (11929274).

23858542 is a wasteful number, since it uses less digits than its factorization.

23858542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11929273.

The product of its digits is 76800, while the sum is 37.

The square root of 23858542 is about 4884.5206520190. The cubic root of 23858542 is about 287.8820810339.

The spelling of 23858542 in words is "twenty-three million, eight hundred fifty-eight thousand, five hundred forty-two".