20633804 has 6 divisors (see below), whose sum is σ = 36109164. Its totient is φ = 10316900.

The previous prime is 20633803. The next prime is 20633831. The reversal of 20633804 is 40833602.

It is not an unprimeable number, because it can be changed into a prime (20633803) 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, 2579222 + ... + 2579229.

It is an arithmetic number, because the mean of its divisors is an integer number (6018194).

Almost surely, 2^20633804 is an apocalyptic number.

It is an amenable number.

20633804 is a deficient number, since it is larger than the sum of its proper divisors (15475360).

20633804 is a wasteful number, since it uses less digits than its factorization.

20633804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5158455 (or 5158453 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 20633804 is about 4542.4447162294. Note that the first 3 decimals coincide. The cubic root of 20633804 is about 274.2793428683.

The spelling of 20633804 in words is "twenty million, six hundred thirty-three thousand, eight hundred four".