19973432 has 16 divisors (see below), whose sum is σ = 37523760. Its totient is φ = 9967104.

The previous prime is 19973423. The next prime is 19973461. The reversal of 19973432 is 23437991.

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, 2453 + ... + 6779.

It is an arithmetic number, because the mean of its divisors is an integer number (2345235).

Almost surely, 2^19973432 is an apocalyptic number.

It is an amenable number.

19973432 is a deficient number, since it is larger than the sum of its proper divisors (17550328).

19973432 is a wasteful number, since it uses less digits than its factorization.

19973432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4910 (or 4906 counting only the distinct ones).

The product of its digits is 40824, while the sum is 38.

The square root of 19973432 is about 4469.1645751751. The cubic root of 19973432 is about 271.3215139860.

The spelling of 19973432 in words is "nineteen million, nine hundred seventy-three thousand, four hundred thirty-two".