20382969 has 8 divisors (see below), whose sum is σ = 28114560. Its totient is φ = 13120016.

The previous prime is 20382961. The next prime is 20383009. The reversal of 20382969 is 96928302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20382969 - 2³ = 20382961 is a prime.

It is a super-2 number, since 2×20382969² = 830930850509922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20382961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117057 + ... + 117230.

It is an arithmetic number, because the mean of its divisors is an integer number (3514320).

Almost surely, 2^20382969 is an apocalyptic number.

20382969 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

20382969 is a deficient number, since it is larger than the sum of its proper divisors (7731591).

20382969 is a wasteful number, since it uses less digits than its factorization.

20382969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234319.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 20382969 is about 4514.7501592004. The cubic root of 20382969 is about 273.1633821889.

The spelling of 20382969 in words is "twenty million, three hundred eighty-two thousand, nine hundred sixty-nine".