19006214 has 4 divisors (see below), whose sum is σ = 28509324. Its totient is φ = 9503106.

The previous prime is 19006159. The next prime is 19006237. The reversal of 19006214 is 41260091.

It is a happy number.

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

It is a super-2 number, since 2×19006214² = 722472341227592, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19006214.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4751552 + ... + 4751555.

It is an arithmetic number, because the mean of its divisors is an integer number (7127331).

Almost surely, 2^19006214 is an apocalyptic number.

19006214 is a deficient number, since it is larger than the sum of its proper divisors (9503110).

19006214 is an equidigital number, since it uses as much as digits as its factorization.

19006214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9503109.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 19006214 is about 4359.6116799550. The cubic root of 19006214 is about 266.8692519608.

The spelling of 19006214 in words is "nineteen million, six thousand, two hundred fourteen".