1222524 has 36 divisors (see below), whose sum is σ = 3199560. Its totient is φ = 393120.

The previous prime is 1222523. The next prime is 1222537. The reversal of 1222524 is 4252221.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1222497 and 1222506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 459 + ... + 1629.

2^1222524 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 1222524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1599780).

1222524 is an abundant number, since it is smaller than the sum of its proper divisors (1977036).

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

1222524 is a wasteful number, since it uses less digits than its factorization.

1222524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210 (or 1205 counting only the distinct ones).

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

The square root of 1222524 is about 1105.6780724967. The cubic root of 1222524 is about 106.9266099356.

Adding to 1222524 its reverse (4252221), we get a palindrome (5474745).

The spelling of 1222524 in words is "one million, two hundred twenty-two thousand, five hundred twenty-four".