18032146 has 24 divisors (see below), whose sum is σ = 29948940. Its totient is φ = 8136480.

The previous prime is 18032141. The next prime is 18032153. The reversal of 18032146 is 64123081.

It can be written as a sum of positive squares in 2 ways, for example, as 14737921 + 3294225 = 3839^2 + 1815^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18032146.

It is not an unprimeable number, because it can be changed into a prime (18032141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64960 + ... + 65236.

Almost surely, 2^18032146 is an apocalyptic number.

18032146 is a deficient number, since it is larger than the sum of its proper divisors (11916794).

18032146 is a wasteful number, since it uses less digits than its factorization.

18032146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 18032146 is about 4246.4274396250. The cubic root of 18032146 is about 262.2300584043.

The spelling of 18032146 in words is "eighteen million, thirty-two thousand, one hundred forty-six".