19442332 has 48 divisors (see below), whose sum is σ = 43251712. Its totient is φ = 7439040.

The previous prime is 19442327. The next prime is 19442341. The reversal of 19442332 is 23324491.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 19442332.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10423 + ... + 12145.

Almost surely, 2^19442332 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 19442332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21625856).

19442332 is an abundant number, since it is smaller than the sum of its proper divisors (23809380).

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

19442332 is a wasteful number, since it uses less digits than its factorization.

19442332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778 (or 1776 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 19442332 is about 4409.3459832497. The cubic root of 19442332 is about 268.8950360465.

The spelling of 19442332 in words is "nineteen million, four hundred forty-two thousand, three hundred thirty-two".