18449914 has 16 divisors (see below), whose sum is σ = 31694400. Its totient is φ = 7890624.

The previous prime is 18449911. The next prime is 18449923. The reversal of 18449914 is 41994481.

It is not an unprimeable number, because it can be changed into a prime (18449911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7602 + ... + 9730.

It is an arithmetic number, because the mean of its divisors is an integer number (1980900).

Almost surely, 2^18449914 is an apocalyptic number.

18449914 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18449914 is a deficient number, since it is larger than the sum of its proper divisors (13244486).

18449914 is a wasteful number, since it uses less digits than its factorization.

18449914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757.

The product of its digits is 41472, while the sum is 40.

The square root of 18449914 is about 4295.3363081370. The cubic root of 18449914 is about 264.2397290613.

The spelling of 18449914 in words is "eighteen million, four hundred forty-nine thousand, nine hundred fourteen".