20546268 has 96 divisors (see below), whose sum is σ = 55157760. Its totient is φ = 5913600.

The previous prime is 20546261. The next prime is 20546269. The reversal of 20546268 is 86264502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20546261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135993 + ... + 136143.

It is an arithmetic number, because the mean of its divisors is an integer number (574560).

Almost surely, 2^20546268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20546268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27578880).

20546268 is an abundant number, since it is smaller than the sum of its proper divisors (34611492).

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

20546268 is a wasteful number, since it uses less digits than its factorization.

20546268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 20546268 is about 4532.7991351923. The cubic root of 20546268 is about 273.8909292914.

The spelling of 20546268 in words is "twenty million, five hundred forty-six thousand, two hundred sixty-eight".