20486712 has 32 divisors (see below), whose sum is σ = 53913600. Its totient is φ = 6469344.

The previous prime is 20486707. The next prime is 20486743. The reversal of 20486712 is 21768402.

It is a self number, because there is not a number n which added to its sum of digits gives 20486712.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22008 + ... + 22919.

It is an arithmetic number, because the mean of its divisors is an integer number (1684800).

Almost surely, 2^20486712 is an apocalyptic number.

It is an amenable number.

20486712 is an abundant number, since it is smaller than the sum of its proper divisors (33426888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20486712 is a wasteful number, since it uses less digits than its factorization.

20486712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44955 (or 44951 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 20486712 is about 4526.2249170805. The cubic root of 20486712 is about 273.6260371582.

The spelling of 20486712 in words is "twenty million, four hundred eighty-six thousand, seven hundred twelve".