18995074 has 16 divisors (see below), whose sum is σ = 32853888. Its totient is φ = 8068032.

The previous prime is 18995071. The next prime is 18995077. The reversal of 18995074 is 47059981.

It is an interprime number because it is at equal distance from previous prime (18995071) and next prime (18995077).

It is a self number, because there is not a number n which added to its sum of digits gives 18995074.

It is not an unprimeable number, because it can be changed into a prime (18995071) 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 7 ways as a sum of consecutive naturals, for example, 4422 + ... + 7585.

It is an arithmetic number, because the mean of its divisors is an integer number (2053368).

Almost surely, 2^18995074 is an apocalyptic number.

18995074 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18995074 is a deficient number, since it is larger than the sum of its proper divisors (13858814).

18995074 is a wasteful number, since it uses less digits than its factorization.

18995074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12129.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 18995074 is about 4358.3338559592. Note that the first 3 decimals coincide. The cubic root of 18995074 is about 266.8171022711.

The spelling of 18995074 in words is "eighteen million, nine hundred ninety-five thousand, seventy-four".