215332080 has 80 divisors (see below), whose sum is σ = 671352864. Its totient is φ = 57093120.

The previous prime is 215332067. The next prime is 215332087. The reversal of 215332080 is 80233512.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 215332080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215332087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40962 + ... + 45918.

Almost surely, 2^215332080 is an apocalyptic number.

215332080 is a gapful number since it is divisible by the number (20) 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 215332080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335676432).

215332080 is an abundant number, since it is smaller than the sum of its proper divisors (456020784).

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

215332080 is a wasteful number, since it uses less digits than its factorization.

215332080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5154 (or 5148 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 215332080 is about 14674.1977634213. The cubic root of 215332080 is about 599.3809170023.

Adding to 215332080 its reverse (80233512), we get a palindrome (295565592).

The spelling of 215332080 in words is "two hundred fifteen million, three hundred thirty-two thousand, eighty".