20233816 has 8 divisors (see below), whose sum is σ = 37938420. Its totient is φ = 10116904.

The previous prime is 20233789. The next prime is 20233819. The reversal of 20233816 is 61833202.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1264606 + ... + 1264621.

Almost surely, 2^20233816 is an apocalyptic number.

It is an amenable number.

20233816 is a deficient number, since it is larger than the sum of its proper divisors (17704604).

20233816 is a wasteful number, since it uses less digits than its factorization.

20233816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2529233 (or 2529229 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 20233816 is about 4498.2014183449. The cubic root of 20233816 is about 272.4954565356.

The spelling of 20233816 in words is "twenty million, two hundred thirty-three thousand, eight hundred sixteen".