18270966 has 32 divisors (see below), whose sum is σ = 43112448. Its totient is φ = 5051520.

The previous prime is 18270961. The next prime is 18271009. The reversal of 18270966 is 66907281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18270961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5715 + ... + 8318.

It is an arithmetic number, because the mean of its divisors is an integer number (1347264).

Almost surely, 2^18270966 is an apocalyptic number.

18270966 is an abundant number, since it is smaller than the sum of its proper divisors (24841482).

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

18270966 is a wasteful number, since it uses less digits than its factorization.

18270966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14076.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 18270966 is about 4274.4550529863. The cubic root of 18270966 is about 263.3826541528.

The spelling of 18270966 in words is "eighteen million, two hundred seventy thousand, nine hundred sixty-six".