44320720 has 40 divisors (see below), whose sum is σ = 104999976. Its totient is φ = 17392128.

The previous prime is 44320699. The next prime is 44320723. The reversal of 44320720 is 2702344.

It can be written as a sum of positive squares in 4 ways, for example, as 21049744 + 23270976 = 4588^2 + 4824^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 44320691 and 44320700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44320723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987 + ... + 9466.

Almost surely, 2^44320720 is an apocalyptic number.

44320720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44320720 is an abundant number, since it is smaller than the sum of its proper divisors (60679256).

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

44320720 is a wasteful number, since it uses less digits than its factorization.

44320720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10519 (or 10513 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 44320720 is about 6657.3808663768. The cubic root of 44320720 is about 353.8905254812.

The spelling of 44320720 in words is "forty-four million, three hundred twenty thousand, seven hundred twenty".