44239440 has 160 divisors (see below), whose sum is σ = 166060800. Its totient is φ = 9510912.

The previous prime is 44239421. The next prime is 44239487. The reversal of 44239440 is 4493244.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 44239398 and 44239407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27786 + ... + 29334.

It is an arithmetic number, because the mean of its divisors is an integer number (1037880).

Almost surely, 2^44239440 is an apocalyptic number.

44239440 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 44239440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83030400).

44239440 is an abundant number, since it is smaller than the sum of its proper divisors (121821360).

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

44239440 is a wasteful number, since it uses less digits than its factorization.

44239440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589 (or 1583 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 44239440 is about 6651.2735622586. The cubic root of 44239440 is about 353.6740592063.

The spelling of 44239440 in words is "forty-four million, two hundred thirty-nine thousand, four hundred forty".