19690330434 has 16 divisors (see below), whose sum is σ = 39600666720. Its totient is φ = 6526775840.

The previous prime is 19690330417. The next prime is 19690330487. The reversal of 19690330434 is 43403309691.

It is a super-2 number, since 2×19690330434² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9165747 + ... + 9167894.

It is an arithmetic number, because the mean of its divisors is an integer number (2475041670).

Almost surely, 2^19690330434 is an apocalyptic number.

19690330434 is an abundant number, since it is smaller than the sum of its proper divisors (19910336286).

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

19690330434 is a wasteful number, since it uses less digits than its factorization.

19690330434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18333825.

The product of its (nonzero) digits is 209952, while the sum is 42.

The spelling of 19690330434 in words is "nineteen billion, six hundred ninety million, three hundred thirty thousand, four hundred thirty-four".