20120548 has 48 divisors (see below), whose sum is σ = 42336000. Its totient is φ = 8184960.

The previous prime is 20120543. The next prime is 20120623. The reversal of 20120548 is 84502102.

It is not an unprimeable number, because it can be changed into a prime (20120543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57478 + ... + 57826.

It is an arithmetic number, because the mean of its divisors is an integer number (882000).

Almost surely, 2^20120548 is an apocalyptic number.

20120548 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20120548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21168000).

20120548 is an abundant number, since it is smaller than the sum of its proper divisors (22215452).

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

20120548 is a wasteful number, since it uses less digits than its factorization.

20120548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 20120548 is about 4485.5933832660. The cubic root of 20120548 is about 271.9860322989.

The spelling of 20120548 in words is "twenty million, one hundred twenty thousand, five hundred forty-eight".