215700480 has 264 divisors, whose sum is σ = 776615424. Its totient is φ = 55296000.

The previous prime is 215700479. The next prime is 215700481. The reversal of 215700480 is 84007512.

It is an interprime number because it is at equal distance from previous prime (215700479) and next prime (215700481).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215700481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1428405 + ... + 1428555.

Almost surely, 2^215700480 is an apocalyptic number.

215700480 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 215700480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388307712).

215700480 is an abundant number, since it is smaller than the sum of its proper divisors (560914944).

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

215700480 is a wasteful number, since it uses less digits than its factorization.

215700480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 215700480 is about 14686.7450444270. The cubic root of 215700480 is about 599.7225383782.

Adding to 215700480 its reverse (84007512), we get a palindrome (299707992).

The spelling of 215700480 in words is "two hundred fifteen million, seven hundred thousand, four hundred eighty".