20225898 has 48 divisors (see below), whose sum is σ = 54639936. Its totient is φ = 5253120.

The previous prime is 20225897. The next prime is 20225911. The reversal of 20225898 is 89852202.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20225897) 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, 5911 + ... + 8682.

It is an arithmetic number, because the mean of its divisors is an integer number (1138332).

Almost surely, 2^20225898 is an apocalyptic number.

20225898 is an abundant number, since it is smaller than the sum of its proper divisors (34414038).

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

20225898 is a wasteful number, since it uses less digits than its factorization.

20225898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14619 (or 14616 counting only the distinct ones).

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

The square root of 20225898 is about 4497.3212026717. The cubic root of 20225898 is about 272.4599071278.

The spelling of 20225898 in words is "twenty million, two hundred twenty-five thousand, eight hundred ninety-eight".