20339330 has 16 divisors (see below), whose sum is σ = 39939264. Its totient is φ = 7396080.

The previous prime is 20339323. The next prime is 20339339. The reversal of 20339330 is 3393302.

It is a junction number, because it is equal to n+sod(n) for n = 20339296 and 20339305.

It is not an unprimeable number, because it can be changed into a prime (20339339) 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 7 ways as a sum of consecutive naturals, for example, 92342 + ... + 92561.

It is an arithmetic number, because the mean of its divisors is an integer number (2496204).

Almost surely, 2^20339330 is an apocalyptic number.

20339330 is a deficient number, since it is larger than the sum of its proper divisors (19599934).

20339330 is a wasteful number, since it uses less digits than its factorization.

20339330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184921.

The product of its (nonzero) digits is 1458, while the sum is 23.

The square root of 20339330 is about 4509.9146333384. The cubic root of 20339330 is about 272.9682994852.

The spelling of 20339330 in words is "twenty million, three hundred thirty-nine thousand, three hundred thirty".