20330368 has 32 divisors (see below), whose sum is σ = 42888960. Its totient is φ = 9566208.

The previous prime is 20330339. The next prime is 20330369. The reversal of 20330368 is 86303302.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330369) by changing a digit.

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, 2496 + ... + 6847.

It is an arithmetic number, because the mean of its divisors is an integer number (1340280).

Almost surely, 2^20330368 is an apocalyptic number.

It is an amenable number.

20330368 is an abundant number, since it is smaller than the sum of its proper divisors (22558592).

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

20330368 is an equidigital number, since it uses as much as digits as its factorization.

20330368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9374 (or 9362 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 20330368 is about 4508.9209352128. The cubic root of 20330368 is about 272.9282014536.

The spelling of 20330368 in words is "twenty million, three hundred thirty thousand, three hundred sixty-eight".