44280540 has 96 divisors (see below), whose sum is σ = 141039360. Its totient is φ = 11527488.

The previous prime is 44280517. The next prime is 44280541. The reversal of 44280540 is 4508244.

44280540 is a `hidden beast` number, since 4 + 42 + 80 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44280541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22267 + ... + 24173.

It is an arithmetic number, because the mean of its divisors is an integer number (1469160).

Almost surely, 2^44280540 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 44280540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70519680).

44280540 is an abundant number, since it is smaller than the sum of its proper divisors (96758820).

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

44280540 is a wasteful number, since it uses less digits than its factorization.

44280540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968 (or 1960 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 44280540 is about 6654.3624788555. The cubic root of 44280540 is about 353.7835505310.

Adding to 44280540 its reverse (4508244), we get a palindrome (48788784).

The spelling of 44280540 in words is "forty-four million, two hundred eighty thousand, five hundred forty".