21466802 has 24 divisors (see below), whose sum is σ = 38173356. Its totient is φ = 9024288.

The previous prime is 21466799. The next prime is 21466807. The reversal of 21466802 is 20866412.

It can be written as a sum of positive squares in 2 ways, for example, as 20259001 + 1207801 = 4501^2 + 1099^2 .

It is not an unprimeable number, because it can be changed into a prime (21466807) 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 11 ways as a sum of consecutive naturals, for example, 3128 + ... + 7260.

Almost surely, 2^21466802 is an apocalyptic number.

21466802 is a deficient number, since it is larger than the sum of its proper divisors (16706554).

21466802 is a wasteful number, since it uses less digits than its factorization.

21466802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202 (or 4195 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 21466802 is about 4633.2280323766. The cubic root of 21466802 is about 277.9216952482.

The spelling of 21466802 in words is "twenty-one million, four hundred sixty-six thousand, eight hundred two".