19820914 has 8 divisors (see below), whose sum is σ = 31296240. Its totient is φ = 9388836.

The previous prime is 19820903. The next prime is 19820921. The reversal of 19820914 is 41902891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 19820914.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 260764 + ... + 260839.

It is an arithmetic number, because the mean of its divisors is an integer number (3912030).

Almost surely, 2^19820914 is an apocalyptic number.

19820914 is a deficient number, since it is larger than the sum of its proper divisors (11475326).

19820914 is a wasteful number, since it uses less digits than its factorization.

19820914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521624.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 19820914 is about 4452.0685080084. The cubic root of 19820914 is about 270.6291410062.

It can be divided in two parts, 198 and 20914, that added together give a palindrome (21112).

The spelling of 19820914 in words is "nineteen million, eight hundred twenty thousand, nine hundred fourteen".