44001420 has 48 divisors (see below), whose sum is σ = 124776960. Its totient is φ = 11583936.

The previous prime is 44001403. The next prime is 44001421. The reversal of 44001420 is 2410044.

44001420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×44001420² = 3872249924032800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 44001420.

It is not an unprimeable number, because it can be changed into a prime (44001421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99 + ... + 9381.

It is an arithmetic number, because the mean of its divisors is an integer number (2599520).

Almost surely, 2^44001420 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 44001420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62388480).

44001420 is an abundant number, since it is smaller than the sum of its proper divisors (80775540).

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

44001420 is a wasteful number, since it uses less digits than its factorization.

44001420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9374 (or 9372 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 44001420 is about 6633.3566163745. The cubic root of 44001420 is about 353.0386312907.

Adding to 44001420 its reverse (2410044), we get a palindrome (46411464).

The spelling of 44001420 in words is "forty-four million, one thousand, four hundred twenty".