18963016 has 8 divisors (see below), whose sum is σ = 35555670. Its totient is φ = 9481504.

The previous prime is 18963011. The next prime is 18963019. The reversal of 18963016 is 61036981.

It can be written as a sum of positive squares in only one way, i.e., 16434916 + 2528100 = 4054^2 + 1590^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (18963011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1185181 + ... + 1185196.

Almost surely, 2^18963016 is an apocalyptic number.

It is an amenable number.

18963016 is a deficient number, since it is larger than the sum of its proper divisors (16592654).

18963016 is a wasteful number, since it uses less digits than its factorization.

18963016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370383 (or 2370379 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 18963016 is about 4354.6545213139. The cubic root of 18963016 is about 266.6669152775. Note that the first 3 decimals are identical.

Adding to 18963016 its reverse (61036981), we get a palindrome (79999997).

The spelling of 18963016 in words is "eighteen million, nine hundred sixty-three thousand, sixteen".