20205468 has 36 divisors (see below), whose sum is σ = 51214800. Its totient is φ = 6716736.

The previous prime is 20205467. The next prime is 20205481. The reversal of 20205468 is 86450202.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20205467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21096 + ... + 22032.

Almost surely, 2^20205468 is an apocalyptic number.

It is an amenable number.

20205468 is an abundant number, since it is smaller than the sum of its proper divisors (31009332).

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

20205468 is a wasteful number, since it uses less digits than its factorization.

20205468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546 (or 1541 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 20205468 is about 4495.0492767043. The cubic root of 20205468 is about 272.3681397787.

The spelling of 20205468 in words is "twenty million, two hundred five thousand, four hundred sixty-eight".