20766368 has 24 divisors (see below), whose sum is σ = 46724832. Its totient is φ = 8899776.

The previous prime is 20766359. The next prime is 20766379. The reversal of 20766368 is 86366702.

It is a super-2 number, since 2×20766368² = 862484079822848, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 46130 + ... + 46577.

It is an arithmetic number, because the mean of its divisors is an integer number (1946868).

Almost surely, 2^20766368 is an apocalyptic number.

20766368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20766368 is an abundant number, since it is smaller than the sum of its proper divisors (25958464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20766368 is an equidigital number, since it uses as much as digits as its factorization.

20766368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92724 (or 92716 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 20766368 is about 4557.0130568169. The cubic root of 20766368 is about 274.8654680811.

The spelling of 20766368 in words is "twenty million, seven hundred sixty-six thousand, three hundred sixty-eight".