19935434 has 16 divisors (see below), whose sum is σ = 31380480. Its totient is φ = 9480240.

The previous prime is 19935403. The next prime is 19935439. The reversal of 19935434 is 43453991.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19935439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7652 + ... + 9920.

It is an arithmetic number, because the mean of its divisors is an integer number (1961280).

Almost surely, 2^19935434 is an apocalyptic number.

19935434 is a deficient number, since it is larger than the sum of its proper divisors (11445046).

19935434 is a wasteful number, since it uses less digits than its factorization.

19935434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485.

The product of its digits is 58320, while the sum is 38.

The square root of 19935434 is about 4464.9114212938. The cubic root of 19935434 is about 271.1493482876.

The spelling of 19935434 in words is "nineteen million, nine hundred thirty-five thousand, four hundred thirty-four".