20498058 has 24 divisors (see below), whose sum is σ = 50757408. Its totient is φ = 5856552.

The previous prime is 20498033. The next prime is 20498059. The reversal of 20498058 is 85089402.

It is a super-3 number, since 3×20498058³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20498059) 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, 81216 + ... + 81467.

It is an arithmetic number, because the mean of its divisors is an integer number (2114892).

Almost surely, 2^20498058 is an apocalyptic number.

20498058 is an abundant number, since it is smaller than the sum of its proper divisors (30259350).

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

20498058 is a wasteful number, since it uses less digits than its factorization.

20498058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162698 (or 162695 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 20498058 is about 4527.4781059658. The cubic root of 20498058 is about 273.6765412454.

The spelling of 20498058 in words is "twenty million, four hundred ninety-eight thousand, fifty-eight".