1215088 has 40 divisors (see below), whose sum is σ = 2837120. Its totient is φ = 492480.

The previous prime is 1215083. The next prime is 1215103. The reversal of 1215088 is 8805121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1843 + ... + 2413.

It is an arithmetic number, because the mean of its divisors is an integer number (70928).

2^1215088 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 1215088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1418560).

1215088 is an abundant number, since it is smaller than the sum of its proper divisors (1622032).

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

1215088 is a wasteful number, since it uses less digits than its factorization.

1215088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 1215088 is about 1102.3103011403. The cubic root of 1215088 is about 106.7093752586.

The spelling of 1215088 in words is "one million, two hundred fifteen thousand, eighty-eight".