19712934 has 24 divisors (see below), whose sum is σ = 43867200. Its totient is φ = 6393168.

The previous prime is 19712933. The next prime is 19712939. The reversal of 19712934 is 43921791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19712933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14134 + ... + 15465.

It is an arithmetic number, because the mean of its divisors is an integer number (1827800).

Almost surely, 2^19712934 is an apocalyptic number.

19712934 is an abundant number, since it is smaller than the sum of its proper divisors (24154266).

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

19712934 is a wasteful number, since it uses less digits than its factorization.

19712934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29644 (or 29641 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 19712934 is about 4439.9249993665. The cubic root of 19712934 is about 270.1368031011.

It can be divided in two parts, 197 and 12934, that added together give a palindrome (13131).

The spelling of 19712934 in words is "nineteen million, seven hundred twelve thousand, nine hundred thirty-four".