21298802 has 16 divisors (see below), whose sum is σ = 37290240. Its totient is φ = 8933568.

The previous prime is 21298799. The next prime is 21298819. The reversal of 21298802 is 20889212.

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, 15527 + ... + 16842.

It is an arithmetic number, because the mean of its divisors is an integer number (2330640).

Almost surely, 2^21298802 is an apocalyptic number.

21298802 is a deficient number, since it is larger than the sum of its proper divisors (15991438).

21298802 is a wasteful number, since it uses less digits than its factorization.

21298802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32425.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 21298802 is about 4615.0625131194. The cubic root of 21298802 is about 277.1947871200.

The spelling of 21298802 in words is "twenty-one million, two hundred ninety-eight thousand, eight hundred two".