20460884 has 12 divisors (see below), whose sum is σ = 35844564. Its totient is φ = 10219584.

The previous prime is 20460871. The next prime is 20460887. The reversal of 20460884 is 48806402.

It can be written as a sum of positive squares in 2 ways, for example, as 8832784 + 11628100 = 2972^2 + 3410^2 .

It is a super-2 number, since 2×20460884² = 837295548122912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20460884.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20460887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2744 + ... + 6960.

It is an arithmetic number, because the mean of its divisors is an integer number (2987047).

Almost surely, 2^20460884 is an apocalyptic number.

It is an amenable number.

20460884 is a deficient number, since it is larger than the sum of its proper divisors (15383680).

20460884 is a wasteful number, since it uses less digits than its factorization.

20460884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5434 (or 5432 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 20460884 is about 4523.3708669531. The cubic root of 20460884 is about 273.5110002293.

The spelling of 20460884 in words is "twenty million, four hundred sixty thousand, eight hundred eighty-four".