19794081 has 8 divisors (see below), whose sum is σ = 26653824. Its totient is φ = 13065200.

The previous prime is 19794059. The next prime is 19794083. The reversal of 19794081 is 18049791.

It is a happy number.

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 19794081 - 2¹¹ = 19792033 is a prime.

It is a super-2 number, since 2×19794081² = 783611285269122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19794083) 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, 32361 + ... + 32966.

It is an arithmetic number, because the mean of its divisors is an integer number (3331728).

Almost surely, 2^19794081 is an apocalyptic number.

It is an amenable number.

19794081 is a deficient number, since it is larger than the sum of its proper divisors (6859743).

19794081 is a wasteful number, since it uses less digits than its factorization.

19794081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65431.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 19794081 is about 4449.0539443796. The cubic root of 19794081 is about 270.5069624638.

The spelling of 19794081 in words is "nineteen million, seven hundred ninety-four thousand, eighty-one".