20948260 has 24 divisors (see below), whose sum is σ = 46307520. Its totient is φ = 7938144.

The previous prime is 20948251. The next prime is 20948261. The reversal of 20948260 is 6284902.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (20948261) 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 7 ways as a sum of consecutive naturals, for example, 27184 + ... + 27943.

It is an arithmetic number, because the mean of its divisors is an integer number (1929480).

Almost surely, 2^20948260 is an apocalyptic number.

20948260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20948260 is an abundant number, since it is smaller than the sum of its proper divisors (25359260).

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

20948260 is a wasteful number, since it uses less digits than its factorization.

20948260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55155 (or 55153 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 20948260 is about 4576.9269166112. The cubic root of 20948260 is about 275.6656491759.

The spelling of 20948260 in words is "twenty million, nine hundred forty-eight thousand, two hundred sixty".