1522224 has 90 divisors (see below), whose sum is σ = 4802148. Its totient is φ = 446400.

The previous prime is 1522201. The next prime is 1522249. The reversal of 1522224 is 4222251.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1522197 and 1522206.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 49089 + ... + 49119.

2^1522224 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 1522224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2401074).

1522224 is an abundant number, since it is smaller than the sum of its proper divisors (3279924).

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

1522224 is a wasteful number, since it uses less digits than its factorization.

1522224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 47 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 1522224 is about 1233.7844220122. The cubic root of 1522224 is about 115.0339912123.

Adding to 1522224 its reverse (4222251), we get a palindrome (5744475).

It can be divided in two parts, 1 and 522224, that added together give a palindrome (522225).

The spelling of 1522224 in words is "one million, five hundred twenty-two thousand, two hundred twenty-four".