1215432960 has 288 divisors, whose sum is σ = 4489605120. Its totient is φ = 274489344.

The previous prime is 1215432947. The next prime is 1215432971. The reversal of 1215432960 is 692345121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2768421 + ... + 2768859.

Almost surely, 2^1215432960 is an apocalyptic number.

1215432960 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 1215432960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2244802560).

1215432960 is an abundant number, since it is smaller than the sum of its proper divisors (3274172160).

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

1215432960 is a wasteful number, since it uses less digits than its factorization.

1215432960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 1215432960 is about 34863.0601066516. The cubic root of 1215432960 is about 1067.1947246506.

The spelling of 1215432960 in words is "one billion, two hundred fifteen million, four hundred thirty-two thousand, nine hundred sixty".