22003768 has 8 divisors (see below), whose sum is σ = 41257080. Its totient is φ = 11001880.

The previous prime is 22003739. The next prime is 22003777. The reversal of 22003768 is 86730022.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

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 as a sum of consecutive naturals, namely, 1375228 + ... + 1375243.

It is an arithmetic number, because the mean of its divisors is an integer number (5157135).

Almost surely, 2^22003768 is an apocalyptic number.

It is an amenable number.

22003768 is a deficient number, since it is larger than the sum of its proper divisors (19253312).

22003768 is a wasteful number, since it uses less digits than its factorization.

22003768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750477 (or 2750473 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 22003768 is about 4690.8174127757. The cubic root of 22003768 is about 280.2199292496.

The spelling of 22003768 in words is "twenty-two million, three thousand, seven hundred sixty-eight".