19047144 has 32 divisors (see below), whose sum is σ = 49155840. Its totient is φ = 6144000.

The previous prime is 19047143. The next prime is 19047163. The reversal of 19047144 is 44174091.

It is not an unprimeable number, because it can be changed into a prime (19047143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12057 + ... + 13544.

It is an arithmetic number, because the mean of its divisors is an integer number (1536120).

Almost surely, 2^19047144 is an apocalyptic number.

It is an amenable number.

19047144 is an abundant number, since it is smaller than the sum of its proper divisors (30108696).

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

19047144 is a wasteful number, since it uses less digits than its factorization.

19047144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25641 (or 25637 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 19047144 is about 4364.3033808387. The cubic root of 19047144 is about 267.0606828083.

It can be divided in two parts, 19047 and 144, that added together give a palindrome (19191).

The spelling of 19047144 in words is "nineteen million, forty-seven thousand, one hundred forty-four".