19641441 has 8 divisors (see below), whose sum is σ = 26745984. Its totient is φ = 12815600.

The previous prime is 19641373. The next prime is 19641449. The reversal of 19641441 is 14414691.

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 19641441 - 2¹⁴ = 19625057 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19641399 and 19641408.

It is not an unprimeable number, because it can be changed into a prime (19641449) 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, 69510 + ... + 69791.

It is an arithmetic number, because the mean of its divisors is an integer number (3343248).

Almost surely, 2^19641441 is an apocalyptic number.

It is an amenable number.

19641441 is a deficient number, since it is larger than the sum of its proper divisors (7104543).

19641441 is a wasteful number, since it uses less digits than its factorization.

19641441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139351.

The product of its digits is 3456, while the sum is 30.

The square root of 19641441 is about 4431.8665367991. The cubic root of 19641441 is about 269.8098386657.

The spelling of 19641441 in words is "nineteen million, six hundred forty-one thousand, four hundred forty-one".