19934199 has 6 divisors (see below), whose sum is σ = 28793856. Its totient is φ = 13289460.

The previous prime is 19934197. The next prime is 19934267. The reversal of 19934199 is 99143991.

It is not a de Polignac number, because 19934199 - 2¹ = 19934197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19934191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1107447 + ... + 1107464.

It is an arithmetic number, because the mean of its divisors is an integer number (4798976).

Almost surely, 2^19934199 is an apocalyptic number.

19934199 is a deficient number, since it is larger than the sum of its proper divisors (8859657).

19934199 is a wasteful number, since it uses less digits than its factorization.

19934199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214917 (or 2214914 counting only the distinct ones).

The product of its digits is 78732, while the sum is 45.

The square root of 19934199 is about 4464.7731185358. The cubic root of 19934199 is about 271.1437489386.

The spelling of 19934199 in words is "nineteen million, nine hundred thirty-four thousand, one hundred ninety-nine".