20332869 has 32 divisors (see below), whose sum is σ = 30351360. Its totient is φ = 12052800.

The previous prime is 20332861. The next prime is 20332877. The reversal of 20332869 is 96823302.

It is an interprime number because it is at equal distance from previous prime (20332861) and next prime (20332877).

It is not a de Polignac number, because 20332869 - 2³ = 20332861 is a prime.

It is a super-2 number, since 2×20332869² = 826851123542322, which contains 22 as substring.

It is a congruent number.

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 in 31 ways as a sum of consecutive naturals, for example, 65224 + ... + 65534.

It is an arithmetic number, because the mean of its divisors is an integer number (948480).

Almost surely, 2^20332869 is an apocalyptic number.

It is an amenable number.

20332869 is a deficient number, since it is larger than the sum of its proper divisors (10018491).

20332869 is a wasteful number, since it uses less digits than its factorization.

20332869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 20332869 is about 4509.1982657674. The cubic root of 20332869 is about 272.9393926831.

The spelling of 20332869 in words is "twenty million, three hundred thirty-two thousand, eight hundred sixty-nine".