19941394 has 8 divisors (see below), whose sum is σ = 32631408. Its totient is φ = 9064260.

The previous prime is 19941371. The next prime is 19941403. The reversal of 19941394 is 49314991.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453192 + ... + 453235.

It is an arithmetic number, because the mean of its divisors is an integer number (4078926).

Almost surely, 2^19941394 is an apocalyptic number.

19941394 is a deficient number, since it is larger than the sum of its proper divisors (12690014).

19941394 is a wasteful number, since it uses less digits than its factorization.

19941394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906440.

The product of its digits is 34992, while the sum is 40.

The square root of 19941394 is about 4465.5787978716. The cubic root of 19941394 is about 271.1763669970.

The spelling of 19941394 in words is "nineteen million, nine hundred forty-one thousand, three hundred ninety-four".