20332868 has 6 divisors (see below), whose sum is σ = 35582526. Its totient is φ = 10166432.

The previous prime is 20332861. The next prime is 20332877. The reversal of 20332868 is 86823302.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19998784 + 334084 = 4472^2 + 578^2 .

It is a super-2 number, since 2×20332868² = 826851042210848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20332861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2541605 + ... + 2541612.

It is an arithmetic number, because the mean of its divisors is an integer number (5930421).

Almost surely, 2^20332868 is an apocalyptic number.

It is an amenable number.

20332868 is a deficient number, since it is larger than the sum of its proper divisors (15249658).

20332868 is a wasteful number, since it uses less digits than its factorization.

20332868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5083221 (or 5083219 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 20332868 is about 4509.1981548830. The cubic root of 20332868 is about 272.9393882086.

The spelling of 20332868 in words is "twenty million, three hundred thirty-two thousand, eight hundred sixty-eight".