21062682 has 24 divisors (see below), whose sum is σ = 45763380. Its totient is φ = 7001280.

The previous prime is 21062681. The next prime is 21062683. The reversal of 21062682 is 28626012.

It is an interprime number because it is at equal distance from previous prime (21062681) and next prime (21062683).

It can be written as a sum of positive squares in 2 ways, for example, as 19527561 + 1535121 = 4419^2 + 1239^2 .

It is not an unprimeable number, because it can be changed into a prime (21062681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5932 + ... + 8792.

Almost surely, 2^21062682 is an apocalyptic number.

21062682 is an abundant number, since it is smaller than the sum of its proper divisors (24700698).

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

21062682 is a wasteful number, since it uses less digits than its factorization.

21062682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3278 (or 3275 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 21062682 is about 4589.4097659721. The cubic root of 21062682 is about 276.1666447937.

Adding to 21062682 its reverse (28626012), we get a palindrome (49688694).

The spelling of 21062682 in words is "twenty-one million, sixty-two thousand, six hundred eighty-two".