19312132 has 48 divisors (see below), whose sum is σ = 42004480. Its totient is φ = 7581600.

The previous prime is 19312127. The next prime is 19312133. The reversal of 19312132 is 23121391.

It is not an unprimeable number, because it can be changed into a prime (19312133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15907 + ... + 17077.

Almost surely, 2^19312132 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 19312132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21002240).

19312132 is an abundant number, since it is smaller than the sum of its proper divisors (22692348).

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

19312132 is a wasteful number, since it uses less digits than its factorization.

19312132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 1230 counting only the distinct ones).

The product of its digits is 324, while the sum is 22.

The square root of 19312132 is about 4394.5570880352. The cubic root of 19312132 is about 268.2934522300.

The spelling of 19312132 in words is "nineteen million, three hundred twelve thousand, one hundred thirty-two".