19042432 has 32 divisors (see below), whose sum is σ = 39168000. Its totient is φ = 9212160.

The previous prime is 19042417. The next prime is 19042433. The reversal of 19042432 is 23424091.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×19042432² = 725228432949248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19042397 and 19042406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19042433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1569 + ... + 6367.

It is an arithmetic number, because the mean of its divisors is an integer number (1224000).

Almost surely, 2^19042432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19042432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19584000).

19042432 is an abundant number, since it is smaller than the sum of its proper divisors (20125568).

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

19042432 is an equidigital number, since it uses as much as digits as its factorization.

19042432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4844 (or 4832 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 19042432 is about 4363.7635132990. The cubic root of 19042432 is about 267.0386586189.

The spelling of 19042432 in words is "nineteen million, forty-two thousand, four hundred thirty-two".