44002720 has 48 divisors (see below), whose sum is σ = 105938280. Its totient is φ = 17265664.

The previous prime is 44002711. The next prime is 44002741. The reversal of 44002720 is 2720044.

It can be written as a sum of positive squares in 4 ways, for example, as 42354064 + 1648656 = 6508^2 + 1284^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5886 + ... + 11074.

Almost surely, 2^44002720 is an apocalyptic number.

44002720 is a gapful number since it is divisible by the number (40) 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 44002720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52969140).

44002720 is an abundant number, since it is smaller than the sum of its proper divisors (61935560).

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

44002720 is a wasteful number, since it uses less digits than its factorization.

44002720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5257 (or 5249 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 44002720 is about 6633.4546052566. The cubic root of 44002720 is about 353.0421080399.

Adding to 44002720 its reverse (2720044), we get a palindrome (46722764).

The spelling of 44002720 in words is "forty-four million, two thousand, seven hundred twenty".