19042944 has 64 divisors (see below), whose sum is σ = 51187680. Its totient is φ = 6272000.

The previous prime is 19042931. The next prime is 19042951. The reversal of 19042944 is 44924091.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38539 + ... + 39029.

Almost surely, 2^19042944 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 19042944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25593840).

19042944 is an abundant number, since it is smaller than the sum of its proper divisors (32144736).

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

19042944 is a wasteful number, since it uses less digits than its factorization.

19042944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 19042944 is about 4363.8221778620. The cubic root of 19042944 is about 267.0410519156.

It can be divided in two parts, 190 and 42944, that added together give a palindrome (43134).

The spelling of 19042944 in words is "nineteen million, forty-two thousand, nine hundred forty-four".