18950806 has 8 divisors (see below), whose sum is σ = 32487120. Its totient is φ = 8121768.

The previous prime is 18950797. The next prime is 18950807. The reversal of 18950806 is 60805981.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18950807) 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, 676801 + ... + 676828.

It is an arithmetic number, because the mean of its divisors is an integer number (4060890).

Almost surely, 2^18950806 is an apocalyptic number.

18950806 is a deficient number, since it is larger than the sum of its proper divisors (13536314).

18950806 is a wasteful number, since it uses less digits than its factorization.

18950806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353638.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 18950806 is about 4353.2523473835. The cubic root of 18950806 is about 266.6096687208.

The spelling of 18950806 in words is "eighteen million, nine hundred fifty thousand, eight hundred six".