19381432 has 16 divisors (see below), whose sum is σ = 41531760. Its totient is φ = 8306304.

The previous prime is 19381423. The next prime is 19381457. The reversal of 19381432 is 23418391.

It is a junction number, because it is equal to n+sod(n) for n = 19381394 and 19381403.

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, 172993 + ... + 173104.

It is an arithmetic number, because the mean of its divisors is an integer number (2595735).

Almost surely, 2^19381432 is an apocalyptic number.

It is an amenable number.

19381432 is an abundant number, since it is smaller than the sum of its proper divisors (22150328).

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

19381432 is a wasteful number, since it uses less digits than its factorization.

19381432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346110 (or 346106 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 19381432 is about 4402.4347808911. The cubic root of 19381432 is about 268.6139854742.

The spelling of 19381432 in words is "nineteen million, three hundred eighty-one thousand, four hundred thirty-two".