44042240 has 192 divisors, whose sum is σ = 127370880. Its totient is φ = 14417920.

The previous prime is 44042237. The next prime is 44042279. The reversal of 44042240 is 4224044.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1914869 + ... + 1914891.

It is an arithmetic number, because the mean of its divisors is an integer number (663390).

Almost surely, 2^44042240 is an apocalyptic number.

44042240 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 44042240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63685440).

44042240 is an abundant number, since it is smaller than the sum of its proper divisors (83328640).

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

44042240 is a wasteful number, since it uses less digits than its factorization.

44042240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 44042240 is about 6636.4327767258. The cubic root of 44042240 is about 353.1477685478.

Adding to 44042240 its reverse (4224044), we get a palindrome (48266284).

The spelling of 44042240 in words is "forty-four million, forty-two thousand, two hundred forty".