44224440 has 64 divisors (see below), whose sum is σ = 142884000. Its totient is φ = 10885632.

The previous prime is 44224417. The next prime is 44224447. The reversal of 44224440 is 4442244.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 44224440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44224447) 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, 12615 + ... + 15734.

Almost surely, 2^44224440 is an apocalyptic number.

44224440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44224440 is an abundant number, since it is smaller than the sum of its proper divisors (98659560).

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

44224440 is a wasteful number, since it uses less digits than its factorization.

44224440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28376 (or 28372 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 44224440 is about 6650.1458630620. The cubic root of 44224440 is about 353.6340819779.

Adding to 44224440 its reverse (4442244), we get a palindrome (48666684).

The spelling of 44224440 in words is "forty-four million, two hundred twenty-four thousand, four hundred forty".