44323440 has 120 divisors (see below), whose sum is σ = 159878160. Its totient is φ = 10128384.

The previous prime is 44323439. The next prime is 44323451. The reversal of 44323440 is 4432344.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 44323440.

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, 9876 + ... + 13644.

It is an arithmetic number, because the mean of its divisors is an integer number (1332318).

Almost surely, 2^44323440 is an apocalyptic number.

44323440 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 44323440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79939080).

44323440 is an abundant number, since it is smaller than the sum of its proper divisors (115554720).

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

44323440 is a wasteful number, since it uses less digits than its factorization.

44323440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3799 (or 3786 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 44323440 is about 6657.5851477844. The cubic root of 44323440 is about 353.8977648532.

Adding to 44323440 its reverse (4432344), we get a palindrome (48755784).

The spelling of 44323440 in words is "forty-four million, three hundred twenty-three thousand, four hundred forty".