18953038 has 16 divisors (see below), whose sum is σ = 30892176. Its totient is φ = 8668800.

The previous prime is 18953023. The next prime is 18953041. The reversal of 18953038 is 83035981.

It is a junction number, because it is equal to n+sod(n) for n = 18952988 and 18953006.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 288 + ... + 6163.

It is an arithmetic number, because the mean of its divisors is an integer number (1930761).

Almost surely, 2^18953038 is an apocalyptic number.

18953038 is a deficient number, since it is larger than the sum of its proper divisors (11939138).

18953038 is a wasteful number, since it uses less digits than its factorization.

18953038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6579.

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

The square root of 18953038 is about 4353.5086998879. The cubic root of 18953038 is about 266.6201352839.

The spelling of 18953038 in words is "eighteen million, nine hundred fifty-three thousand, thirty-eight".