19429934 has 8 divisors (see below), whose sum is σ = 29170848. Its totient is φ = 9706320.

The previous prime is 19429897. The next prime is 19429957. The reversal of 19429934 is 43992491.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19429891 and 19429900.

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, 1007 + ... + 6314.

It is an arithmetic number, because the mean of its divisors is an integer number (3646356).

Almost surely, 2^19429934 is an apocalyptic number.

19429934 is a deficient number, since it is larger than the sum of its proper divisors (9740914).

19429934 is a wasteful number, since it uses less digits than its factorization.

19429934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8650.

The product of its digits is 69984, while the sum is 41.

The square root of 19429934 is about 4407.9398816227. The cubic root of 19429934 is about 268.8378675009.

The spelling of 19429934 in words is "nineteen million, four hundred twenty-nine thousand, nine hundred thirty-four".