20088650 has 12 divisors (see below), whose sum is σ = 37364982. Its totient is φ = 8035440.

The previous prime is 20088631. The next prime is 20088659. The reversal of 20088650 is 5688002.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9778129 + 10310521 = 3127^2 + 3211^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20088659) 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 5 ways as a sum of consecutive naturals, for example, 200837 + ... + 200936.

Almost surely, 2^20088650 is an apocalyptic number.

20088650 is a deficient number, since it is larger than the sum of its proper divisors (17276332).

20088650 is a wasteful number, since it uses less digits than its factorization.

20088650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401785 (or 401780 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 20088650 is about 4482.0363675454. The cubic root of 20088650 is about 271.8422257582.

The spelling of 20088650 in words is "twenty million, eighty-eight thousand, six hundred fifty".