20022768 has 40 divisors (see below), whose sum is σ = 57474000. Its totient is φ = 6674112.

The previous prime is 20022733. The next prime is 20022791. The reversal of 20022768 is 86722002.

It is a super-2 number, since 2×20022768² = 801822476763648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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, 22743 + ... + 23606.

It is an arithmetic number, because the mean of its divisors is an integer number (1436850).

Almost surely, 2^20022768 is an apocalyptic number.

It is an amenable number.

20022768 is an abundant number, since it is smaller than the sum of its proper divisors (37451232).

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

20022768 is a wasteful number, since it uses less digits than its factorization.

20022768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46366 (or 46354 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 20022768 is about 4474.6807707366. The cubic root of 20022768 is about 271.5447256984.

The spelling of 20022768 in words is "twenty million, twenty-two thousand, seven hundred sixty-eight".