21246602 has 16 divisors (see below), whose sum is σ = 34450920. Its totient is φ = 9769152.

The previous prime is 21246581. The next prime is 21246611. The reversal of 21246602 is 20664212.

It can be written as a sum of positive squares in 4 ways, for example, as 19971961 + 1274641 = 4469^2 + 1129^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6224 + ... + 9012.

Almost surely, 2^21246602 is an apocalyptic number.

21246602 is a deficient number, since it is larger than the sum of its proper divisors (13204318).

21246602 is a wasteful number, since it uses less digits than its factorization.

21246602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3097.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 21246602 is about 4609.4036490635. The cubic root of 21246602 is about 276.9681483184.

The spelling of 21246602 in words is "twenty-one million, two hundred forty-six thousand, six hundred two".