18959208 has 16 divisors (see below), whose sum is σ = 47398080. Its totient is φ = 6319728.

The previous prime is 18959203. The next prime is 18959209. The reversal of 18959208 is 80295981.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18959208.

It is not an unprimeable number, because it can be changed into a prime (18959203) 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, 394960 + ... + 395007.

It is an arithmetic number, because the mean of its divisors is an integer number (2962380).

Almost surely, 2^18959208 is an apocalyptic number.

It is an amenable number.

18959208 is an abundant number, since it is smaller than the sum of its proper divisors (28438872).

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

18959208 is a wasteful number, since it uses less digits than its factorization.

18959208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789976 (or 789972 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 18959208 is about 4354.2172660537. The cubic root of 18959208 is about 266.6490641159.

The spelling of 18959208 in words is "eighteen million, nine hundred fifty-nine thousand, two hundred eight".