18952811 has 16 divisors (see below), whose sum is σ = 20275200. Its totient is φ = 17690400.

The previous prime is 18952799. The next prime is 18952819. The reversal of 18952811 is 11825981.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18952811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18952819) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 173825 + ... + 173933.

It is an arithmetic number, because the mean of its divisors is an integer number (1267200).

Almost surely, 2^18952811 is an apocalyptic number.

18952811 is a deficient number, since it is larger than the sum of its proper divisors (1322389).

18952811 is a wasteful number, since it uses less digits than its factorization.

18952811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290.

The product of its digits is 5760, while the sum is 35.

The square root of 18952811 is about 4353.4826288846. The cubic root of 18952811 is about 266.6190708457.

The spelling of 18952811 in words is "eighteen million, nine hundred fifty-two thousand, eight hundred eleven".