19934269 has 4 divisors (see below), whose sum is σ = 20131740. Its totient is φ = 19736800.

The previous prime is 19934267. The next prime is 19934279. The reversal of 19934269 is 96243991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18404100 + 1530169 = 4290^2 + 1237^2 .

It is a cyclic number.

It is not a de Polignac number, because 19934269 - 2¹ = 19934267 is a prime.

It is a super-2 number, since 2×19934269² = 794750161128722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19934267) 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 3 ways as a sum of consecutive naturals, for example, 98584 + ... + 98785.

It is an arithmetic number, because the mean of its divisors is an integer number (5032935).

Almost surely, 2^19934269 is an apocalyptic number.

It is an amenable number.

19934269 is a deficient number, since it is larger than the sum of its proper divisors (197471).

19934269 is a wasteful number, since it uses less digits than its factorization.

19934269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197470.

The product of its digits is 104976, while the sum is 43.

The square root of 19934269 is about 4464.7809576731. The cubic root of 19934269 is about 271.1440663168.

The spelling of 19934269 in words is "nineteen million, nine hundred thirty-four thousand, two hundred sixty-nine".