19916241 has 8 divisors (see below), whose sum is σ = 26576064. Its totient is φ = 13266960.

The previous prime is 19916227. The next prime is 19916251. The reversal of 19916241 is 14261991.

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

It is not a de Polignac number, because 19916241 - 2⁵ = 19916209 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (19916251) 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, 4671 + ... + 7851.

It is an arithmetic number, because the mean of its divisors is an integer number (3322008).

Almost surely, 2^19916241 is an apocalyptic number.

It is an amenable number.

19916241 is a deficient number, since it is larger than the sum of its proper divisors (6659823).

19916241 is a wasteful number, since it uses less digits than its factorization.

19916241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271.

The product of its digits is 3888, while the sum is 33.

The square root of 19916241 is about 4462.7615889716. The cubic root of 19916241 is about 271.0623032726.

The spelling of 19916241 in words is "nineteen million, nine hundred sixteen thousand, two hundred forty-one".