23826820 has 12 divisors (see below), whose sum is σ = 50036364. Its totient is φ = 9530720.

The previous prime is 23826811. The next prime is 23826883. The reversal of 23826820 is 2862832.

It can be written as a sum of positive squares in 2 ways, for example, as 3594816 + 20232004 = 1896^2 + 4498^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 595651 + ... + 595690.

It is an arithmetic number, because the mean of its divisors is an integer number (4169697).

Almost surely, 2^23826820 is an apocalyptic number.

23826820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23826820 is an abundant number, since it is smaller than the sum of its proper divisors (26209544).

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

23826820 is a wasteful number, since it uses less digits than its factorization.

23826820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191350 (or 1191348 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 23826820 is about 4881.2723751088. The cubic root of 23826820 is about 287.7544363841.

The spelling of 23826820 in words is "twenty-three million, eight hundred twenty-six thousand, eight hundred twenty".