1215360 has 96 divisors (see below), whose sum is σ = 4216680. Its totient is φ = 322560.

The previous prime is 1215359. The next prime is 1215367. The reversal of 1215360 is 635121.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5655 + ... + 5865.

2^1215360 is an apocalyptic number.

1215360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1215360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2108340).

1215360 is an abundant number, since it is smaller than the sum of its proper divisors (3001320).

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

1215360 is a wasteful number, since it uses less digits than its factorization.

1215360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1215360 is about 1102.4336714742. The cubic root of 1215360 is about 106.7173370371.

The spelling of 1215360 in words is "one million, two hundred fifteen thousand, three hundred sixty".