18954854 has 4 divisors (see below), whose sum is σ = 28432284. Its totient is φ = 9477426.

The previous prime is 18954853. The next prime is 18954883. The reversal of 18954854 is 45845981.

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

It is a super-2 number, since 2×18954854² = 718572980322632, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18954853) 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 as a sum of consecutive naturals, namely, 4738712 + ... + 4738715.

It is an arithmetic number, because the mean of its divisors is an integer number (7108071).

Almost surely, 2^18954854 is an apocalyptic number.

18954854 is a deficient number, since it is larger than the sum of its proper divisors (9477430).

18954854 is an equidigital number, since it uses as much as digits as its factorization.

18954854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9477429.

The product of its digits is 230400, while the sum is 44.

The square root of 18954854 is about 4353.7172622944. The cubic root of 18954854 is about 266.6286504834.

The spelling of 18954854 in words is "eighteen million, nine hundred fifty-four thousand, eight hundred fifty-four".