20548044 has 72 divisors (see below), whose sum is σ = 59666880. Its totient is φ = 5896800.

The previous prime is 20548027. The next prime is 20548057. The reversal of 20548044 is 44084502.

It is a super-2 number, since 2×20548044² = 844444224451872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20547999 and 20548017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6159 + ... + 8889.

Almost surely, 2^20548044 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 20548044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29833440).

20548044 is an abundant number, since it is smaller than the sum of its proper divisors (39118836).

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

20548044 is a wasteful number, since it uses less digits than its factorization.

20548044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771 (or 2766 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 20548044 is about 4532.9950363970. The cubic root of 20548044 is about 273.8988206884.

The spelling of 20548044 in words is "twenty million, five hundred forty-eight thousand, forty-four".