18933085 has 16 divisors (see below), whose sum is σ = 24145200. Its totient is φ = 14224896.

The previous prime is 18933077. The next prime is 18933091. The reversal of 18933085 is 58033981.

It can be written as a sum of positive squares in 8 ways, for example, as 88804 + 18844281 = 298^2 + 4341^2 .

It is a cyclic number.

It is not a de Polignac number, because 18933085 - 2³ = 18933077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3601 + ... + 7129.

It is an arithmetic number, because the mean of its divisors is an integer number (1509075).

Almost surely, 2^18933085 is an apocalyptic number.

It is an amenable number.

18933085 is a deficient number, since it is larger than the sum of its proper divisors (5212115).

18933085 is a wasteful number, since it uses less digits than its factorization.

18933085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 18933085 is about 4351.2164965674. The cubic root of 18933085 is about 266.5265400952.

The spelling of 18933085 in words is "eighteen million, nine hundred thirty-three thousand, eighty-five".