19734900430 has 96 divisors (see below), whose sum is σ = 43566832800. Its totient is φ = 6399896832.

The previous prime is 19734900401. The next prime is 19734900509. The reversal of 19734900430 is 3400943791.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7716712 + ... + 7719268.

It is an arithmetic number, because the mean of its divisors is an integer number (453821175).

Almost surely, 2^19734900430 is an apocalyptic number.

19734900430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19734900430 is an abundant number, since it is smaller than the sum of its proper divisors (23831932370).

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

19734900430 is a wasteful number, since it uses less digits than its factorization.

19734900430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426 (or 3419 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The spelling of 19734900430 in words is "nineteen billion, seven hundred thirty-four million, nine hundred thousand, four hundred thirty".