19794249 has 6 divisors (see below), whose sum is σ = 28591706. Its totient is φ = 13196160.

The previous prime is 19794241. The next prime is 19794259. The reversal of 19794249 is 94249791.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18020025 + 1774224 = 4245^2 + 1332^2 .

It is not a de Polignac number, because 19794249 - 2³ = 19794241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19794241) 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, 1099672 + ... + 1099689.

Almost surely, 2^19794249 is an apocalyptic number.

It is an amenable number.

19794249 is a deficient number, since it is larger than the sum of its proper divisors (8797457).

19794249 is a wasteful number, since it uses less digits than its factorization.

19794249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2199367 (or 2199364 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 19794249 is about 4449.0728247580. The cubic root of 19794249 is about 270.5077277607.

The spelling of 19794249 in words is "nineteen million, seven hundred ninety-four thousand, two hundred forty-nine".