18254422 has 8 divisors (see below), whose sum is σ = 27433872. Its totient is φ = 9109800.

The previous prime is 18254417. The next prime is 18254429. The reversal of 18254422 is 22445281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18254429) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7354 + ... + 9517.

It is an arithmetic number, because the mean of its divisors is an integer number (3429234).

Almost surely, 2^18254422 is an apocalyptic number.

18254422 is a deficient number, since it is larger than the sum of its proper divisors (9179450).

18254422 is a wasteful number, since it uses less digits than its factorization.

18254422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17414.

The product of its digits is 5120, while the sum is 28.

The square root of 18254422 is about 4272.5193972643. The cubic root of 18254422 is about 263.3031342107.

The spelling of 18254422 in words is "eighteen million, two hundred fifty-four thousand, four hundred twenty-two".