18276066 has 24 divisors (see below), whose sum is σ = 39833820. Its totient is φ = 6055776.

The previous prime is 18276029. The next prime is 18276067. The reversal of 18276066 is 66067281.

It is a happy number.

18276066 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 2 ways, for example, as 18275625 + 441 = 4275^2 + 21^2 .

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 18276066.

It is not an unprimeable number, because it can be changed into a prime (18276067) 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, 180 + ... + 6048.

Almost surely, 2^18276066 is an apocalyptic number.

18276066 is an abundant number, since it is smaller than the sum of its proper divisors (21557754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18276066 is a wasteful number, since it uses less digits than its factorization.

18276066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6050 (or 6047 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 18276066 is about 4275.0515786362. The cubic root of 18276066 is about 263.4071579944.

The spelling of 18276066 in words is "eighteen million, two hundred seventy-six thousand, sixty-six".