19683434 has 16 divisors (see below), whose sum is σ = 30024456. Its totient is φ = 9676800.

The previous prime is 19683413. The next prime is 19683457. The reversal of 19683434 is 43438691.

It can be written as a sum of positive squares in 4 ways, for example, as 12581209 + 7102225 = 3547^2 + 2665^2 .

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 7 ways as a sum of consecutive naturals, for example, 46544 + ... + 46964.

Almost surely, 2^19683434 is an apocalyptic number.

19683434 is a deficient number, since it is larger than the sum of its proper divisors (10341022).

19683434 is a wasteful number, since it uses less digits than its factorization.

19683434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761.

The product of its digits is 62208, while the sum is 38.

The square root of 19683434 is about 4436.6016273720. The cubic root of 19683434 is about 270.0019844390.

The spelling of 19683434 in words is "nineteen million, six hundred eighty-three thousand, four hundred thirty-four".