19916414 has 8 divisors (see below), whose sum is σ = 34142448. Its totient is φ = 8535600.

The previous prime is 19916399. The next prime is 19916419. The reversal of 19916414 is 41461991.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19916419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711287 + ... + 711314.

It is an arithmetic number, because the mean of its divisors is an integer number (4267806).

Almost surely, 2^19916414 is an apocalyptic number.

19916414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19916414 is a deficient number, since it is larger than the sum of its proper divisors (14226034).

19916414 is a wasteful number, since it uses less digits than its factorization.

19916414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422610.

The product of its digits is 7776, while the sum is 35.

The square root of 19916414 is about 4462.7809715468. The cubic root of 19916414 is about 271.0630881203.

The spelling of 19916414 in words is "nineteen million, nine hundred sixteen thousand, four hundred fourteen".