20089570 has 16 divisors (see below), whose sum is σ = 36247680. Its totient is φ = 8016624.

The previous prime is 20089567. The next prime is 20089591. The reversal of 20089570 is 7598002.

It is a plaindrome in base 12.

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, 2461 + ... + 6799.

It is an arithmetic number, because the mean of its divisors is an integer number (2265480).

Almost surely, 2^20089570 is an apocalyptic number.

20089570 is a deficient number, since it is larger than the sum of its proper divisors (16158110).

20089570 is a wasteful number, since it uses less digits than its factorization.

20089570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4809.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 20089570 is about 4482.1389982909. The cubic root of 20089570 is about 271.8463755480.

The spelling of 20089570 in words is "twenty million, eighty-nine thousand, five hundred seventy".