10215320 has 16 divisors (see below), whose sum is σ = 22984560. Its totient is φ = 4086112.

The previous prime is 10215307. The next prime is 10215329. The reversal of 10215320 is 2351201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10215295 and 10215304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10215329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127652 + ... + 127731.

It is an arithmetic number, because the mean of its divisors is an integer number (1436535).

Almost surely, 2^10215320 is an apocalyptic number.

10215320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10215320 is an abundant number, since it is smaller than the sum of its proper divisors (12769240).

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

10215320 is a wasteful number, since it uses less digits than its factorization.

10215320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255394 (or 255390 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 10215320 is about 3196.1414236545. The cubic root of 10215320 is about 216.9788111005.

Adding to 10215320 its reverse (2351201), we get a palindrome (12566521).

The spelling of 10215320 in words is "ten million, two hundred fifteen thousand, three hundred twenty".