19072044 has 48 divisors (see below), whose sum is σ = 49845600. Its totient is φ = 6306048.

The previous prime is 19072033. The next prime is 19072049. The reversal of 19072044 is 44027091.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 19071999 and 19072017.

It is not an unprimeable number, because it can be changed into a prime (19072049) 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, 14152 + ... + 15440.

It is an arithmetic number, because the mean of its divisors is an integer number (1038450).

Almost surely, 2^19072044 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 19072044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24922800).

19072044 is an abundant number, since it is smaller than the sum of its proper divisors (30773556).

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

19072044 is a wasteful number, since it uses less digits than its factorization.

19072044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439 (or 1431 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 19072044 is about 4367.1551380733. The cubic root of 19072044 is about 267.1770067286.

The spelling of 19072044 in words is "nineteen million, seventy-two thousand, forty-four".