1224872 has 32 divisors (see below), whose sum is σ = 2592000. Its totient is φ = 537600.

The previous prime is 1224869. The next prime is 1224887. The reversal of 1224872 is 2784221.

It is a super-2 number, since 2×1224872² = 3000622832768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2504 + ... + 2952.

It is an arithmetic number, because the mean of its divisors is an integer number (81000).

2^1224872 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 1224872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1296000).

1224872 is an abundant number, since it is smaller than the sum of its proper divisors (1367128).

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

1224872 is a wasteful number, since it uses less digits than its factorization.

1224872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 493 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 1224872 is about 1106.7393550426. The cubic root of 1224872 is about 106.9950211676.

It can be divided in two parts, 122 and 4872, that added together give a palindrome (4994).

The spelling of 1224872 in words is "one million, two hundred twenty-four thousand, eight hundred seventy-two".