19934494 has 8 divisors (see below), whose sum is σ = 29928960. Its totient is φ = 9958176.

The previous prime is 19934483. The next prime is 19934501. The reversal of 19934494 is 49443991.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 19934494.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1339 + ... + 6454.

It is an arithmetic number, because the mean of its divisors is an integer number (3741120).

Almost surely, 2^19934494 is an apocalyptic number.

19934494 is a deficient number, since it is larger than the sum of its proper divisors (9994466).

19934494 is a wasteful number, since it uses less digits than its factorization.

19934494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9074.

The product of its digits is 139968, while the sum is 43.

The square root of 19934494 is about 4464.8061548067. The cubic root of 19934494 is about 271.1450864559.

The spelling of 19934494 in words is "nineteen million, nine hundred thirty-four thousand, four hundred ninety-four".