18952016 has 20 divisors (see below), whose sum is σ = 37134900. Its totient is φ = 9368832.

The previous prime is 18952007. The next prime is 18952027. The reversal of 18952016 is 61025981.

It can be written as a sum of positive squares in 2 ways, for example, as 1345600 + 17606416 = 1160^2 + 4196^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5231 + ... + 8078.

It is an arithmetic number, because the mean of its divisors is an integer number (1856745).

Almost surely, 2^18952016 is an apocalyptic number.

18952016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18952016 is a deficient number, since it is larger than the sum of its proper divisors (18182884).

18952016 is a wasteful number, since it uses less digits than its factorization.

18952016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13406 (or 13400 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 18952016 is about 4353.3913217169. The cubic root of 18952016 is about 266.6153429004.

Adding to 18952016 its reverse (61025981), we get a palindrome (79977997).

The spelling of 18952016 in words is "eighteen million, nine hundred fifty-two thousand, sixteen".