19712132 has 12 divisors (see below), whose sum is σ = 37632336. Its totient is φ = 8960040.

The previous prime is 19712123. The next prime is 19712153. The reversal of 19712132 is 23121791.

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, 223958 + ... + 224045.

It is an arithmetic number, because the mean of its divisors is an integer number (3136028).

Almost surely, 2^19712132 is an apocalyptic number.

It is an amenable number.

19712132 is a deficient number, since it is larger than the sum of its proper divisors (17920204).

19712132 is a wasteful number, since it uses less digits than its factorization.

19712132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448018 (or 448016 counting only the distinct ones).

The product of its digits is 756, while the sum is 26.

The square root of 19712132 is about 4439.8346816070. The cubic root of 19712132 is about 270.1331396408.

The spelling of 19712132 in words is "nineteen million, seven hundred twelve thousand, one hundred thirty-two".