18077422 has 16 divisors (see below), whose sum is σ = 30212352. Its totient is φ = 8041720.

The previous prime is 18077419. The next prime is 18077429. The reversal of 18077422 is 22477081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18077429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7708 + ... + 9775.

It is an arithmetic number, because the mean of its divisors is an integer number (1888272).

Almost surely, 2^18077422 is an apocalyptic number.

18077422 is a deficient number, since it is larger than the sum of its proper divisors (12134930).

18077422 is a wasteful number, since it uses less digits than its factorization.

18077422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17543.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 18077422 is about 4251.7551669869. The cubic root of 18077422 is about 262.4493483524.

It can be divided in two parts, 1807 and 7422, that added together give a palindrome (9229).

The spelling of 18077422 in words is "eighteen million, seventy-seven thousand, four hundred twenty-two".