19768494 has 8 divisors (see below), whose sum is σ = 39537000. Its totient is φ = 6589496.

The previous prime is 19768451. The next prime is 19768513. The reversal of 19768494 is 49486791.

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

19768494 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1647369 + ... + 1647380.

It is an arithmetic number, because the mean of its divisors is an integer number (4942125).

Almost surely, 2^19768494 is an apocalyptic number.

19768494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19768494 is a wasteful number, since it uses less digits than its factorization.

19768494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3294754.

The product of its digits is 435456, while the sum is 48.

The square root of 19768494 is about 4446.1774593464. The cubic root of 19768494 is about 270.3903544375.

The spelling of 19768494 in words is "nineteen million, seven hundred sixty-eight thousand, four hundred ninety-four".