20468898 has 12 divisors (see below), whose sum is σ = 44349318. Its totient is φ = 6822960.

The previous prime is 20468893. The next prime is 20468911. The reversal of 20468898 is 89886402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18948609 + 1520289 = 4353^2 + 1233^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20468893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 568563 + ... + 568598.

Almost surely, 2^20468898 is an apocalyptic number.

20468898 is an abundant number, since it is smaller than the sum of its proper divisors (23880420).

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

20468898 is a wasteful number, since it uses less digits than its factorization.

20468898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137169 (or 1137166 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 20468898 is about 4524.2566240212. The cubic root of 20468898 is about 273.5467046340.

The spelling of 20468898 in words is "twenty million, four hundred sixty-eight thousand, eight hundred ninety-eight".