19427419 has 8 divisors (see below), whose sum is σ = 21924720. Its totient is φ = 17052000.

The previous prime is 19427393. The next prime is 19427423. The reversal of 19427419 is 91472491.

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

It is not a de Polignac number, because 19427419 - 2¹⁵ = 19394651 is a prime.

It is a super-2 number, since 2×19427419² = 754849218003122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19427459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30132 + ... + 30769.

It is an arithmetic number, because the mean of its divisors is an integer number (2740590).

Almost surely, 2^19427419 is an apocalyptic number.

19427419 is a deficient number, since it is larger than the sum of its proper divisors (2497301).

19427419 is a wasteful number, since it uses less digits than its factorization.

19427419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60941.

The product of its digits is 18144, while the sum is 37.

The square root of 19427419 is about 4407.6545917302. The cubic root of 19427419 is about 268.8262675917.

The spelling of 19427419 in words is "nineteen million, four hundred twenty-seven thousand, four hundred nineteen".