10215680 has 72 divisors (see below), whose sum is σ = 25607232. Its totient is φ = 3897344.

The previous prime is 10215677. The next prime is 10215701. The reversal of 10215680 is 8651201.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29267 + ... + 29613.

It is an arithmetic number, because the mean of its divisors is an integer number (355656).

Almost surely, 2^10215680 is an apocalyptic number.

10215680 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 10215680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12803616).

10215680 is an abundant number, since it is smaller than the sum of its proper divisors (15391552).

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

10215680 is an equidigital number, since it uses as much as digits as its factorization.

10215680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 10215680 is about 3196.1977410667. The cubic root of 10215680 is about 216.9813599341.

Adding to 10215680 its reverse (8651201), we get a palindrome (18866881).

The spelling of 10215680 in words is "ten million, two hundred fifteen thousand, six hundred eighty".