21798482 has 8 divisors (see below), whose sum is σ = 32718000. Its totient is φ = 10892484.

The previous prime is 21798467. The next prime is 21798499. The reversal of 21798482 is 28489712.

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, 3269 + ... + 7367.

It is an arithmetic number, because the mean of its divisors is an integer number (4089750).

Almost surely, 2^21798482 is an apocalyptic number.

21798482 is a deficient number, since it is larger than the sum of its proper divisors (10919518).

21798482 is a wasteful number, since it uses less digits than its factorization.

21798482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6760.

The product of its digits is 64512, while the sum is 41.

The square root of 21798482 is about 4668.8844492020. The cubic root of 21798482 is about 279.3457599268.

The spelling of 21798482 in words is "twenty-one million, seven hundred ninety-eight thousand, four hundred eighty-two".