18755494 has 4 divisors (see below), whose sum is σ = 28133244. Its totient is φ = 9377746.

The previous prime is 18755483. The next prime is 18755497. The reversal of 18755494 is 49455781.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18755494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18755497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4688872 + ... + 4688875.

It is an arithmetic number, because the mean of its divisors is an integer number (7033311).

Almost surely, 2^18755494 is an apocalyptic number.

18755494 is a deficient number, since it is larger than the sum of its proper divisors (9377750).

18755494 is an equidigital number, since it uses as much as digits as its factorization.

18755494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9377749.

The product of its digits is 201600, while the sum is 43.

The square root of 18755494 is about 4330.7613649334. The cubic root of 18755494 is about 265.6905875225.

The spelling of 18755494 in words is "eighteen million, seven hundred fifty-five thousand, four hundred ninety-four".