18949514 has 12 divisors (see below), whose sum is σ = 28979286. Its totient is φ = 9293232.

The previous prime is 18949487. The next prime is 18949523. The reversal of 18949514 is 41594981.

It can be written as a sum of positive squares in 3 ways, for example, as 18361225 + 588289 = 4285^2 + 767^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3932 + ... + 7304.

Almost surely, 2^18949514 is an apocalyptic number.

18949514 is a deficient number, since it is larger than the sum of its proper divisors (10029772).

18949514 is an equidigital number, since it uses as much as digits as its factorization.

18949514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3481 (or 3428 counting only the distinct ones).

The product of its digits is 51840, while the sum is 41.

The square root of 18949514 is about 4353.1039500568. The cubic root of 18949514 is about 266.6036097433.

The spelling of 18949514 in words is "eighteen million, nine hundred forty-nine thousand, five hundred fourteen".