44309340 has 72 divisors (see below), whose sum is σ = 135189600. Its totient is φ = 11746944.

The previous prime is 44309299. The next prime is 44309341. The reversal of 44309340 is 4390344.

It is a super-2 number, since 2×44309340² = 3926635222471200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44309341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35202 + ... + 36438.

Almost surely, 2^44309340 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 44309340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67594800).

44309340 is an abundant number, since it is smaller than the sum of its proper divisors (90880260).

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

44309340 is a wasteful number, since it uses less digits than its factorization.

44309340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451 (or 1446 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 44309340 is about 6656.5261210334. The cubic root of 44309340 is about 353.8602340139.

Adding to 44309340 its reverse (4390344), we get a palindrome (48699684).

The spelling of 44309340 in words is "forty-four million, three hundred nine thousand, three hundred forty".