10212636 has 24 divisors (see below), whose sum is σ = 27233920. Its totient is φ = 2917872.

The previous prime is 10212619. The next prime is 10212637. The reversal of 10212636 is 63621201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212637) 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 7 ways as a sum of consecutive naturals, for example, 60706 + ... + 60873.

Almost surely, 2^10212636 is an apocalyptic number.

It is an amenable number.

10212636 is an abundant number, since it is smaller than the sum of its proper divisors (17021284).

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

10212636 is a wasteful number, since it uses less digits than its factorization.

10212636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121593 (or 121591 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 10212636 is about 3195.7215147757. The cubic root of 10212636 is about 216.9598062417.

Adding to 10212636 its reverse (63621201), we get a palindrome (73833837).

The spelling of 10212636 in words is "ten million, two hundred twelve thousand, six hundred thirty-six".