20222378 has 16 divisors (see below), whose sum is σ = 33160320. Its totient is φ = 9172800.

The previous prime is 20222357. The next prime is 20222383. The reversal of 20222378 is 87322202.

It is a Curzon 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, 19538 + ... + 20546.

It is an arithmetic number, because the mean of its divisors is an integer number (2072520).

Almost surely, 2^20222378 is an apocalyptic number.

20222378 is a deficient number, since it is larger than the sum of its proper divisors (12937942).

20222378 is a wasteful number, since it uses less digits than its factorization.

20222378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 20222378 is about 4496.9298415697. The cubic root of 20222378 is about 272.4441004211. Note that the first 3 decimals are identical.

The spelling of 20222378 in words is "twenty million, two hundred twenty-two thousand, three hundred seventy-eight".