10215860 has 12 divisors (see below), whose sum is σ = 21453348. Its totient is φ = 4086336.

The previous prime is 10215817. The next prime is 10215869. The reversal of 10215860 is 6851201.

It can be written as a sum of positive squares in 2 ways, for example, as 3794704 + 6421156 = 1948^2 + 2534^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10215869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255377 + ... + 255416.

It is an arithmetic number, because the mean of its divisors is an integer number (1787779).

Almost surely, 2^10215860 is an apocalyptic number.

10215860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10215860 is an abundant number, since it is smaller than the sum of its proper divisors (11237488).

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

10215860 is a wasteful number, since it uses less digits than its factorization.

10215860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510802 (or 510800 counting only the distinct ones).

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

The square root of 10215860 is about 3196.2258994007. The cubic root of 10215860 is about 216.9826343285.

The spelling of 10215860 in words is "ten million, two hundred fifteen thousand, eight hundred sixty".