20098449 has 20 divisors (see below), whose sum is σ = 34313664. Its totient is φ = 11484504.

The previous prime is 20098439. The next prime is 20098451. The reversal of 20098449 is 94489002.

It is a happy number.

20098449 is a `hidden beast` number, since 200 + 9 + 8 + 449 = 666.

It is not a de Polignac number, because 20098449 - 2⁵ = 20098417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20098439) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17157 + ... + 18290.

Almost surely, 2^20098449 is an apocalyptic number.

It is an amenable number.

20098449 is a deficient number, since it is larger than the sum of its proper divisors (14215215).

20098449 is an equidigital number, since it uses as much as digits as its factorization.

20098449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35466 (or 35457 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 20098449 is about 4483.1293757821. The cubic root of 20098449 is about 271.8864190210.

The spelling of 20098449 in words is "twenty million, ninety-eight thousand, four hundred forty-nine".