19090224 has 60 divisors (see below), whose sum is σ = 54885376. Its totient is φ = 6189696.

The previous prime is 19090189. The next prime is 19090241. The reversal of 19090224 is 42209091.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3537 + ... + 7119.

Almost surely, 2^19090224 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 19090224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27442688).

19090224 is an abundant number, since it is smaller than the sum of its proper divisors (35795152).

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

19090224 is a wasteful number, since it uses less digits than its factorization.

19090224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3634 (or 3625 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 19090224 is about 4369.2360888375. The cubic root of 19090224 is about 267.2618732735.

It can be divided in two parts, 1 and 9090224, that added together give a square (9090225 = 3015²).

The spelling of 19090224 in words is "nineteen million, ninety thousand, two hundred twenty-four".