44008020 has 144 divisors (see below), whose sum is σ = 155675520. Its totient is φ = 9854208.

The previous prime is 44007979. The next prime is 44008031. The reversal of 44008020 is 2080044.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 44007984 and 44008002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66451 + ... + 67109.

It is an arithmetic number, because the mean of its divisors is an integer number (1081080).

Almost surely, 2^44008020 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 44008020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77837760).

44008020 is an abundant number, since it is smaller than the sum of its proper divisors (111667500).

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

44008020 is a wasteful number, since it uses less digits than its factorization.

44008020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 44008020 is about 6633.8540834118. The cubic root of 44008020 is about 353.0562817702.

Adding to 44008020 its reverse (2080044), we get a palindrome (46088064).

The spelling of 44008020 in words is "forty-four million, eight thousand, twenty".