19992442430 has 8 divisors (see below), whose sum is σ = 35986396392. Its totient is φ = 7996976968.

The previous prime is 19992442417. The next prime is 19992442441. The reversal of 19992442430 is 3424429991.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 999622112 + ... + 999622131.

It is an arithmetic number, because the mean of its divisors is an integer number (4498299549).

Almost surely, 2^19992442430 is an apocalyptic number.

19992442430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19992442430 is a deficient number, since it is larger than the sum of its proper divisors (15993953962).

19992442430 is a wasteful number, since it uses less digits than its factorization.

19992442430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999244250.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 19992442430 in words is "nineteen billion, nine hundred ninety-two million, four hundred forty-two thousand, four hundred thirty".