18661094 has 8 divisors (see below), whose sum is σ = 28956960. Its totient is φ = 9008776.

The previous prime is 18661091. The next prime is 18661099. The reversal of 18661094 is 49016681.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18661091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160814 + ... + 160929.

It is an arithmetic number, because the mean of its divisors is an integer number (3619620).

Almost surely, 2^18661094 is an apocalyptic number.

18661094 is a deficient number, since it is larger than the sum of its proper divisors (10295866).

18661094 is a wasteful number, since it uses less digits than its factorization.

18661094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321774.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 18661094 is about 4319.8488399480. The cubic root of 18661094 is about 265.2440803283.

The spelling of 18661094 in words is "eighteen million, six hundred sixty-one thousand, ninety-four".