44072840 has 128 divisors (see below), whose sum is σ = 123171840. Its totient is φ = 13848576.

The previous prime is 44072813. The next prime is 44072849. The reversal of 44072840 is 4827044.

It is not an unprimeable number, because it can be changed into a prime (44072849) 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, 223622 + ... + 223818.

It is an arithmetic number, because the mean of its divisors is an integer number (962280).

Almost surely, 2^44072840 is an apocalyptic number.

44072840 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 44072840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61585920).

44072840 is an abundant number, since it is smaller than the sum of its proper divisors (79099000).

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

44072840 is a wasteful number, since it uses less digits than its factorization.

44072840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 44072840 is about 6638.7378318473. The cubic root of 44072840 is about 353.2295371710.

Adding to 44072840 its reverse (4827044), we get a palindrome (48899884).

The spelling of 44072840 in words is "forty-four million, seventy-two thousand, eight hundred forty".