1215344 has 20 divisors (see below), whose sum is σ = 2536296. Its totient is φ = 560832.

The previous prime is 1215329. The next prime is 1215349. The reversal of 1215344 is 4435121.

It is a super-2 number, since 2×1215344² = 2954122076672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2714 + ... + 3129.

2^1215344 is an apocalyptic number.

It is an amenable number.

1215344 is an abundant number, since it is smaller than the sum of its proper divisors (1320952).

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

1215344 is a wasteful number, since it uses less digits than its factorization.

1215344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5864 (or 5858 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 1215344 is about 1102.4264147779. The cubic root of 1215344 is about 106.7168687301.

The spelling of 1215344 in words is "one million, two hundred fifteen thousand, three hundred forty-four".