1222624 has 24 divisors (see below), whose sum is σ = 2593080. Its totient is φ = 564096.

The previous prime is 1222603. The next prime is 1222633. The reversal of 1222624 is 4262221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054 + ... + 1885.

It is an arithmetic number, because the mean of its divisors is an integer number (108045).

2^1222624 is an apocalyptic number.

It is an amenable number.

1222624 is an abundant number, since it is smaller than the sum of its proper divisors (1370456).

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

1222624 is a wasteful number, since it uses less digits than its factorization.

1222624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2962 (or 2954 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 1222624 is about 1105.7232926913. The cubic root of 1222624 is about 106.9295253165.

Adding to 1222624 its reverse (4262221), we get a palindrome (5484845).

The spelling of 1222624 in words is "one million, two hundred twenty-two thousand, six hundred twenty-four".