20089746 has 24 divisors (see below), whose sum is σ = 44126940. Its totient is φ = 6604416.

The previous prime is 20089711. The next prime is 20089747. The reversal of 20089746 is 64798002.

It can be written as a sum of positive squares in 2 ways, for example, as 19900521 + 189225 = 4461^2 + 435^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20089746.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20089747) 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 11 ways as a sum of consecutive naturals, for example, 6331 + ... + 8958.

Almost surely, 2^20089746 is an apocalyptic number.

20089746 is an abundant number, since it is smaller than the sum of its proper divisors (24037194).

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

20089746 is a wasteful number, since it uses less digits than its factorization.

20089746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15370 (or 15367 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 20089746 is about 4482.1586317309. The cubic root of 20089746 is about 271.8471694065.

The spelling of 20089746 in words is "twenty million, eighty-nine thousand, seven hundred forty-six".