20898448 has 20 divisors (see below), whose sum is σ = 40612480. Its totient is φ = 10417824.

The previous prime is 20898443. The next prime is 20898481. The reversal of 20898448 is 84489802.

It is not an unprimeable number, because it can be changed into a prime (20898443) 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, 4093 + ... + 7651.

It is an arithmetic number, because the mean of its divisors is an integer number (2030624).

Almost surely, 2^20898448 is an apocalyptic number.

It is an amenable number.

20898448 is a deficient number, since it is larger than the sum of its proper divisors (19714032).

20898448 is a wasteful number, since it uses less digits than its factorization.

20898448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3934 (or 3928 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 20898448 is about 4571.4820354016. The cubic root of 20898448 is about 275.4469777836.

The spelling of 20898448 in words is "twenty million, eight hundred ninety-eight thousand, four hundred forty-eight".