20330476 has 6 divisors (see below), whose sum is σ = 35578340. Its totient is φ = 10165236.

The previous prime is 20330467. The next prime is 20330477. The reversal of 20330476 is 67403302.

It is a self number, because there is not a number n which added to its sum of digits gives 20330476.

It is not an unprimeable number, because it can be changed into a prime (20330477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2541306 + ... + 2541313.

Almost surely, 2^20330476 is an apocalyptic number.

It is an amenable number.

20330476 is a deficient number, since it is larger than the sum of its proper divisors (15247864).

20330476 is a wasteful number, since it uses less digits than its factorization.

20330476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5082623 (or 5082621 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 20330476 is about 4508.9329114548. The cubic root of 20330476 is about 272.9286847403.

Adding to 20330476 its reverse (67403302), we get a palindrome (87733778).

The spelling of 20330476 in words is "twenty million, three hundred thirty thousand, four hundred seventy-six".