20333790 has 24 divisors (see below), whose sum is σ = 52868088. Its totient is φ = 5422320.

The previous prime is 20333773. The next prime is 20333791. The reversal of 20333790 is 9733302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333791) 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 in 11 ways as a sum of consecutive naturals, for example, 112876 + ... + 113055.

It is an arithmetic number, because the mean of its divisors is an integer number (2202837).

Almost surely, 2^20333790 is an apocalyptic number.

20333790 is an abundant number, since it is smaller than the sum of its proper divisors (32534298).

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

20333790 is a wasteful number, since it uses less digits than its factorization.

20333790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225944 (or 225941 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 27.

The square root of 20333790 is about 4509.3003891956. The cubic root of 20333790 is about 272.9435136524.

The spelling of 20333790 in words is "twenty million, three hundred thirty-three thousand, seven hundred ninety".