23986842 has 16 divisors (see below), whose sum is σ = 52335072. Its totient is φ = 7268720.

The previous prime is 23986817. The next prime is 23986843. The reversal of 23986842 is 24868932.

It is a junction number, because it is equal to n+sod(n) for n = 23986794 and 23986803.

It is not an unprimeable number, because it can be changed into a prime (23986843) 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 in 7 ways as a sum of consecutive naturals, for example, 181653 + ... + 181784.

It is an arithmetic number, because the mean of its divisors is an integer number (3270942).

Almost surely, 2^23986842 is an apocalyptic number.

23986842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23986842 is an abundant number, since it is smaller than the sum of its proper divisors (28348230).

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

23986842 is a wasteful number, since it uses less digits than its factorization.

23986842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363453.

The product of its digits is 165888, while the sum is 42.

The square root of 23986842 is about 4897.6363686987. The cubic root of 23986842 is about 288.3971902032.

The spelling of 23986842 in words is "twenty-three million, nine hundred eighty-six thousand, eight hundred forty-two".