19340247 has 8 divisors (see below), whose sum is σ = 25807360. Its totient is φ = 12883320.

The previous prime is 19340221. The next prime is 19340257. The reversal of 19340247 is 74204391.

It is a happy number.

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

It is not a de Polignac number, because 19340247 - 2⁶ = 19340183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19340257) 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, 5754 + ... + 8472.

It is an arithmetic number, because the mean of its divisors is an integer number (3225920).

Almost surely, 2^19340247 is an apocalyptic number.

19340247 is a deficient number, since it is larger than the sum of its proper divisors (6467113).

19340247 is a wasteful number, since it uses less digits than its factorization.

19340247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 19340247 is about 4397.7547680606. The cubic root of 19340247 is about 268.4235848139.

The spelling of 19340247 in words is "nineteen million, three hundred forty thousand, two hundred forty-seven".