20330769 has 8 divisors (see below), whose sum is σ = 28042560. Its totient is φ = 13086416.

The previous prime is 20330753. The next prime is 20330771. The reversal of 20330769 is 96703302.

It is a happy number.

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 20330769 - 2⁴ = 20330753 is a prime.

It is a super-2 number, since 2×20330769² = 826680336262722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20330369) 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, 116757 + ... + 116930.

It is an arithmetic number, because the mean of its divisors is an integer number (3505320).

Almost surely, 2^20330769 is an apocalyptic number.

20330769 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

20330769 is a deficient number, since it is larger than the sum of its proper divisors (7711791).

20330769 is a wasteful number, since it uses less digits than its factorization.

20330769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233719.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 20330769 is about 4508.9654023955. The cubic root of 20330769 is about 272.9299958708.

The spelling of 20330769 in words is "twenty million, three hundred thirty thousand, seven hundred sixty-nine".