20098066 has 8 divisors (see below), whose sum is σ = 30259980. Its totient is φ = 10011408.

The previous prime is 20098061. The next prime is 20098079. The reversal of 20098066 is 66089002.

It can be written as a sum of positive squares in 2 ways, for example, as 16933225 + 3164841 = 4115^2 + 1779^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20098061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18141 + ... + 19216.

Almost surely, 2^20098066 is an apocalyptic number.

20098066 is a deficient number, since it is larger than the sum of its proper divisors (10161914).

20098066 is a wasteful number, since it uses less digits than its factorization.

20098066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37628.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 20098066 is about 4483.0866598807. The cubic root of 20098066 is about 271.8846919696.

The spelling of 20098066 in words is "twenty million, ninety-eight thousand, sixty-six".