20599982 has 8 divisors (see below), whose sum is σ = 33276936. Its totient is φ = 9507672.

The previous prime is 20599979. The next prime is 20599991. The reversal of 20599982 is 28999502.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 396128 + ... + 396179.

It is an arithmetic number, because the mean of its divisors is an integer number (4159617).

Almost surely, 2^20599982 is an apocalyptic number.

20599982 is a deficient number, since it is larger than the sum of its proper divisors (12676954).

20599982 is a wasteful number, since it uses less digits than its factorization.

20599982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792322.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 20599982 is about 4538.7203042267. The cubic root of 20599982 is about 274.1293988058.

The spelling of 20599982 in words is "twenty million, five hundred ninety-nine thousand, nine hundred eighty-two".