20982592 has 14 divisors (see below), whose sum is σ = 41637458. Its totient is φ = 10491264.

The previous prime is 20982569. The next prime is 20982613. The reversal of 20982592 is 29528902.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11397376 + 9585216 = 3376^2 + 3096^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163863 + ... + 163990.

Almost surely, 2^20982592 is an apocalyptic number.

It is an amenable number.

20982592 is a deficient number, since it is larger than the sum of its proper divisors (20654866).

20982592 is an equidigital number, since it uses as much as digits as its factorization.

20982592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327865 (or 327855 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 20982592 is about 4580.6759326545. The cubic root of 20982592 is about 275.8161626715.

The spelling of 20982592 in words is "twenty million, nine hundred eighty-two thousand, five hundred ninety-two".