19424109 has 8 divisors (see below), whose sum is σ = 26263872. Its totient is φ = 12766880.

The previous prime is 19424107. The next prime is 19424117. The reversal of 19424109 is 90142491.

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

It is a cyclic number.

It is not a de Polignac number, because 19424109 - 2¹ = 19424107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19424101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45384 + ... + 45809.

It is an arithmetic number, because the mean of its divisors is an integer number (3282984).

Almost surely, 2^19424109 is an apocalyptic number.

It is an amenable number.

19424109 is a deficient number, since it is larger than the sum of its proper divisors (6839763).

19424109 is an equidigital number, since it uses as much as digits as its factorization.

19424109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91267.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 19424109 is about 4407.2790925922. The cubic root of 19424109 is about 268.8109993860.

The spelling of 19424109 in words is "nineteen million, four hundred twenty-four thousand, one hundred nine".