23939542 has 8 divisors (see below), whose sum is σ = 39173832. Its totient is φ = 10881600.

The previous prime is 23939521. The next prime is 23939543. The reversal of 23939542 is 24593932.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23939543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544059 + ... + 544102.

It is an arithmetic number, because the mean of its divisors is an integer number (4896729).

Almost surely, 2^23939542 is an apocalyptic number.

23939542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23939542 is a deficient number, since it is larger than the sum of its proper divisors (15234290).

23939542 is a wasteful number, since it uses less digits than its factorization.

23939542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088174.

The product of its digits is 58320, while the sum is 37.

The square root of 23939542 is about 4892.8051258966. The cubic root of 23939542 is about 288.2075006038.

It can be divided in two parts, 2393 and 9542, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 23939542 in words is "twenty-three million, nine hundred thirty-nine thousand, five hundred forty-two".