20584948 has 6 divisors (see below), whose sum is σ = 36023666. Its totient is φ = 10292472.

The previous prime is 20584903. The next prime is 20584957. The reversal of 20584948 is 84948502.

It can be written as a sum of positive squares in only one way, i.e., 11209104 + 9375844 = 3348^2 + 3062^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20584948.

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 as a sum of consecutive naturals, namely, 2573115 + ... + 2573122.

Almost surely, 2^20584948 is an apocalyptic number.

It is an amenable number.

20584948 is a deficient number, since it is larger than the sum of its proper divisors (15438718).

20584948 is a wasteful number, since it uses less digits than its factorization.

20584948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5146241 (or 5146239 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 20584948 is about 4537.0638082355. The cubic root of 20584948 is about 274.0626954406.

It can be divided in two parts, 2058494 and 8, that added together give a palindrome (2058502).

The spelling of 20584948 in words is "twenty million, five hundred eighty-four thousand, nine hundred forty-eight".