21302794 has 8 divisors (see below), whose sum is σ = 32012640. Its totient is φ = 10631916.

The previous prime is 21302789. The next prime is 21302833. The reversal of 21302794 is 49720312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8334 + ... + 10585.

It is an arithmetic number, because the mean of its divisors is an integer number (4001580).

Almost surely, 2^21302794 is an apocalyptic number.

21302794 is a deficient number, since it is larger than the sum of its proper divisors (10709846).

21302794 is a wasteful number, since it uses less digits than its factorization.

21302794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19484.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 21302794 is about 4615.4949897059. The cubic root of 21302794 is about 277.2121040950.

The spelling of 21302794 in words is "twenty-one million, three hundred two thousand, seven hundred ninety-four".