18284146 has 8 divisors (see below), whose sum is σ = 29039580. Its totient is φ = 8604288.

The previous prime is 18284117. The next prime is 18284171. The reversal of 18284146 is 64148281.

It can be written as a sum of positive squares in 2 ways, for example, as 17313921 + 970225 = 4161^2 + 985^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 537769 = 18284146 / (1 + 8 + 2 + 8 + 4 + 1 + 4 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268851 + ... + 268918.

Almost surely, 2^18284146 is an apocalyptic number.

18284146 is a deficient number, since it is larger than the sum of its proper divisors (10755434).

18284146 is a wasteful number, since it uses less digits than its factorization.

18284146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537788.

The product of its digits is 12288, while the sum is 34.

The square root of 18284146 is about 4275.9964920472. The cubic root of 18284146 is about 263.4459704366.

The spelling of 18284146 in words is "eighteen million, two hundred eighty-four thousand, one hundred forty-six".