18949606 has 8 divisors (see below), whose sum is σ = 30610944. Its totient is φ = 8745960.

The previous prime is 18949591. The next prime is 18949633. The reversal of 18949606 is 60694981.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364390 + ... + 364441.

It is an arithmetic number, because the mean of its divisors is an integer number (3826368).

Almost surely, 2^18949606 is an apocalyptic number.

18949606 is a deficient number, since it is larger than the sum of its proper divisors (11661338).

18949606 is a wasteful number, since it uses less digits than its factorization.

18949606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728846.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 18949606 is about 4353.1145172164. The cubic root of 18949606 is about 266.6040411966.

The spelling of 18949606 in words is "eighteen million, nine hundred forty-nine thousand, six hundred six".