8001215244 has 72 divisors (see below), whose sum is σ = 22134791952. Its totient is φ = 2416826880.

The previous prime is 8001215237. The next prime is 8001215251. The reversal of 8001215244 is 4425121008.

It is an interprime number because it is at equal distance from previous prime (8001215237) and next prime (8001215251).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91672 + ... + 156224.

It is an arithmetic number, because the mean of its divisors is an integer number (307427666).

Almost surely, 2^8001215244 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 8001215244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11067395976).

8001215244 is an abundant number, since it is smaller than the sum of its proper divisors (14133576708).

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

8001215244 is a wasteful number, since it uses less digits than its factorization.

8001215244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64887 (or 64882 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 8001215244 is about 89449.5122625048. The cubic root of 8001215244 is about 2000.1012652059.

The spelling of 8001215244 in words is "eight billion, one million, two hundred fifteen thousand, two hundred forty-four".