10220660 has 12 divisors (see below), whose sum is σ = 21463428. Its totient is φ = 4088256.

The previous prime is 10220653. The next prime is 10220677. The reversal of 10220660 is 6602201.

It can be written as a sum of positive squares in 2 ways, for example, as 2347024 + 7873636 = 1532^2 + 2806^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255497 + ... + 255536.

It is an arithmetic number, because the mean of its divisors is an integer number (1788619).

Almost surely, 2^10220660 is an apocalyptic number.

10220660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10220660 is an abundant number, since it is smaller than the sum of its proper divisors (11242768).

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

10220660 is a wasteful number, since it uses less digits than its factorization.

10220660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511042 (or 511040 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 10220660 is about 3196.9766968184. The cubic root of 10220660 is about 217.0166126578.

Adding to 10220660 its reverse (6602201), we get a palindrome (16822861).

The spelling of 10220660 in words is "ten million, two hundred twenty thousand, six hundred sixty".