27422990 has 16 divisors (see below), whose sum is σ = 56413152. Its totient is φ = 9402144.

The previous prime is 27422981. The next prime is 27423001. The reversal of 27422990 is 9922472.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27422990.

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, 195809 + ... + 195948.

It is an arithmetic number, because the mean of its divisors is an integer number (3525822).

Almost surely, 2^27422990 is an apocalyptic number.

27422990 is an abundant number, since it is smaller than the sum of its proper divisors (28990162).

27422990 is a wasteful number, since it uses less digits than its factorization.

27422990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391771.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 27422990 is about 5236.6964777424. The cubic root of 27422990 is about 301.5585190039.

The spelling of 27422990 in words is "twenty-seven million, four hundred twenty-two thousand, nine hundred ninety".