19428214 has 8 divisors (see below), whose sum is σ = 31384080. Its totient is φ = 8966856.

The previous prime is 19428209. The next prime is 19428313. The reversal of 19428214 is 41282491.

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

It is a congruent number.

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, 373594 + ... + 373645.

It is an arithmetic number, because the mean of its divisors is an integer number (3923010).

Almost surely, 2^19428214 is an apocalyptic number.

19428214 is a deficient number, since it is larger than the sum of its proper divisors (11955866).

19428214 is a wasteful number, since it uses less digits than its factorization.

19428214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747254.

The product of its digits is 4608, while the sum is 31.

The square root of 19428214 is about 4407.7447748253. The cubic root of 19428214 is about 268.8299344704.

The spelling of 19428214 in words is "nineteen million, four hundred twenty-eight thousand, two hundred fourteen".