20483645 has 24 divisors (see below), whose sum is σ = 30427776. Its totient is φ = 12961728.

The previous prime is 20483627. The next prime is 20483677. The reversal of 20483645 is 54638402.

It is not a de Polignac number, because 20483645 - 2¹⁰ = 20482621 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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 23 ways as a sum of consecutive naturals, for example, 4184 + ... + 7646.

It is an arithmetic number, because the mean of its divisors is an integer number (1267824).

Almost surely, 2^20483645 is an apocalyptic number.

It is an amenable number.

20483645 is a deficient number, since it is larger than the sum of its proper divisors (9944131).

20483645 is a wasteful number, since it uses less digits than its factorization.

20483645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501 (or 3488 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 20483645 is about 4525.8861010856. The cubic root of 20483645 is about 273.6123819177.

The spelling of 20483645 in words is "twenty million, four hundred eighty-three thousand, six hundred forty-five".