23205828 has 12 divisors (see below), whose sum is σ = 54146960. Its totient is φ = 7735272.

The previous prime is 23205817. The next prime is 23205851. The reversal of 23205828 is 82850232.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 23205795 and 23205804.

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, 966898 + ... + 966921.

Almost surely, 2^23205828 is an apocalyptic number.

It is an amenable number.

23205828 is an abundant number, since it is smaller than the sum of its proper divisors (30941132).

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

23205828 is a wasteful number, since it uses less digits than its factorization.

23205828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933826 (or 1933824 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 23205828 is about 4817.2427798482. The cubic root of 23205828 is about 285.2325095539.

The spelling of 23205828 in words is "twenty-three million, two hundred five thousand, eight hundred twenty-eight".