23243816 has 8 divisors (see below), whose sum is σ = 43582170. Its totient is φ = 11621904.

The previous prime is 23243791. The next prime is 23243827. The reversal of 23243816 is 61834232.

It can be written as a sum of positive squares in only one way, i.e., 15570916 + 7672900 = 3946^2 + 2770^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1452731 + ... + 1452746.

Almost surely, 2^23243816 is an apocalyptic number.

It is an amenable number.

23243816 is a deficient number, since it is larger than the sum of its proper divisors (20338354).

23243816 is a wasteful number, since it uses less digits than its factorization.

23243816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2905483 (or 2905479 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 23243816 is about 4821.1840869230. The cubic root of 23243816 is about 285.3880668189.

The spelling of 23243816 in words is "twenty-three million, two hundred forty-three thousand, eight hundred sixteen".