19941466 has 4 divisors (see below), whose sum is σ = 29912202. Its totient is φ = 9970732.

The previous prime is 19941461. The next prime is 19941479. The reversal of 19941466 is 66414991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14784025 + 5157441 = 3845^2 + 2271^2 .

It is a Smith number, since the sum of its digits (40) 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 (19941461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4985365 + ... + 4985368.

Almost surely, 2^19941466 is an apocalyptic number.

19941466 is a deficient number, since it is larger than the sum of its proper divisors (9970736).

19941466 is an equidigital number, since it uses as much as digits as its factorization.

19941466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9970735.

The product of its digits is 46656, while the sum is 40.

The square root of 19941466 is about 4465.5868595292. The cubic root of 19941466 is about 271.1766933647.

The spelling of 19941466 in words is "nineteen million, nine hundred forty-one thousand, four hundred sixty-six".