44132440 has 64 divisors (see below), whose sum is σ = 114048000. Its totient is φ = 15200640.

The previous prime is 44132401. The next prime is 44132443. The reversal of 44132440 is 4423144.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44132443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5721 + ... + 10999.

It is an arithmetic number, because the mean of its divisors is an integer number (1782000).

Almost surely, 2^44132440 is an apocalyptic number.

44132440 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 44132440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57024000).

44132440 is an abundant number, since it is smaller than the sum of its proper divisors (69915560).

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

44132440 is a wasteful number, since it uses less digits than its factorization.

44132440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5320 (or 5316 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 44132440 is about 6643.2251203764. The cubic root of 44132440 is about 353.3886903497.

Adding to 44132440 its reverse (4423144), we get a palindrome (48555584).

The spelling of 44132440 in words is "forty-four million, one hundred thirty-two thousand, four hundred forty".