19942732 has 12 divisors (see below), whose sum is σ = 34931736. Its totient is φ = 9962240.

The previous prime is 19942709. The next prime is 19942759. The reversal of 19942732 is 23724991.

It is a junction number, because it is equal to n+sod(n) for n = 19942691 and 19942700.

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, 5868 + ... + 8620.

It is an arithmetic number, because the mean of its divisors is an integer number (2910978).

Almost surely, 2^19942732 is an apocalyptic number.

It is an amenable number.

19942732 is a deficient number, since it is larger than the sum of its proper divisors (14989004).

19942732 is a wasteful number, since it uses less digits than its factorization.

19942732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4568 (or 4566 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 19942732 is about 4465.7286079653. The cubic root of 19942732 is about 271.1824318667.

The spelling of 19942732 in words is "nineteen million, nine hundred forty-two thousand, seven hundred thirty-two".