23842856 has 8 divisors (see below), whose sum is σ = 44705370. Its totient is φ = 11921424.

The previous prime is 23842849. The next prime is 23842859. The reversal of 23842856 is 65824832.

It can be written as a sum of positive squares in only one way, i.e., 23522500 + 320356 = 4850^2 + 566^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (23842859) 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 as a sum of consecutive naturals, namely, 1490171 + ... + 1490186.

Almost surely, 2^23842856 is an apocalyptic number.

It is an amenable number.

23842856 is a deficient number, since it is larger than the sum of its proper divisors (20862514).

23842856 is a wasteful number, since it uses less digits than its factorization.

23842856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980363 (or 2980359 counting only the distinct ones).

The product of its digits is 92160, while the sum is 38.

The square root of 23842856 is about 4882.9147033304. The cubic root of 23842856 is about 287.8189770337.

The spelling of 23842856 in words is "twenty-three million, eight hundred forty-two thousand, eight hundred fifty-six".