23689542 has 24 divisors (see below), whose sum is σ = 50008536. Its totient is φ = 7480224.

The previous prime is 23689531. The next prime is 23689543. The reversal of 23689542 is 24598632.

It is a happy number.

It is a super-2 number, since 2×23689542² = 1122388800339528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23689542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23689543) 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 in 11 ways as a sum of consecutive naturals, for example, 3303 + ... + 7634.

It is an arithmetic number, because the mean of its divisors is an integer number (2083689).

Almost surely, 2^23689542 is an apocalyptic number.

23689542 is an abundant number, since it is smaller than the sum of its proper divisors (26318994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23689542 is a wasteful number, since it uses less digits than its factorization.

23689542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10980 (or 10961 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 23689542 is about 4867.1903599510. The cubic root of 23689542 is about 287.2007401512.

The spelling of 23689542 in words is "twenty-three million, six hundred eighty-nine thousand, five hundred forty-two".