20044880 has 40 divisors (see below), whose sum is σ = 47696352. Its totient is φ = 7830144.

The previous prime is 20044873. The next prime is 20044897. The reversal of 20044880 is 8844002.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 527 + ... + 6353.

Almost surely, 2^20044880 is an apocalyptic number.

20044880 is a gapful number since it is divisible by the number (20) 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 20044880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23848176).

20044880 is an abundant number, since it is smaller than the sum of its proper divisors (27651472).

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

20044880 is a wasteful number, since it uses less digits than its factorization.

20044880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5883 (or 5877 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 20044880 is about 4477.1508797448. The cubic root of 20044880 is about 271.6446484135.

Adding to 20044880 its reverse (8844002), we get a palindrome (28888882).

The spelling of 20044880 in words is "twenty million, forty-four thousand, eight hundred eighty".