20498841 has 24 divisors (see below), whose sum is σ = 32722560. Its totient is φ = 12261600.

The previous prime is 20498833. The next prime is 20498857. The reversal of 20498841 is 14889402.

It is not a de Polignac number, because 20498841 - 2³ = 20498833 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20498796 and 20498805.

It is not an unprimeable number, because it can be changed into a prime (20498801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6511 + ... + 9131.

It is an arithmetic number, because the mean of its divisors is an integer number (1363440).

Almost surely, 2^20498841 is an apocalyptic number.

It is an amenable number.

20498841 is a deficient number, since it is larger than the sum of its proper divisors (12223719).

20498841 is a wasteful number, since it uses less digits than its factorization.

20498841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717 (or 2714 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 20498841 is about 4527.5645771209. The cubic root of 20498841 is about 273.6800259008.

The spelling of 20498841 in words is "twenty million, four hundred ninety-eight thousand, eight hundred forty-one".