19994496 has 32 divisors (see below), whose sum is σ = 53111400. Its totient is φ = 6664704.

The previous prime is 19994489. The next prime is 19994503. The reversal of 19994496 is 69449991.

It is an interprime number because it is at equal distance from previous prime (19994489) and next prime (19994503).

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25651 + ... + 26418.

Almost surely, 2^19994496 is an apocalyptic number.

19994496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19994496 is an abundant number, since it is smaller than the sum of its proper divisors (33116904).

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

19994496 is an equidigital number, since it uses as much as digits as its factorization.

19994496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52086 (or 52074 counting only the distinct ones).

The product of its digits is 629856, while the sum is 51.

The square root of 19994496 is about 4471.5205467492. The cubic root of 19994496 is about 271.4168591174.

The spelling of 19994496 in words is "nineteen million, nine hundred ninety-four thousand, four hundred ninety-six".