44043661 has 8 divisors (see below), whose sum is σ = 44595360. Its totient is φ = 43494768.

The previous prime is 44043631. The next prime is 44043667. The reversal of 44043661 is 16634044.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44043661 - 2⁷ = 44043533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44043667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59230 + ... + 59968.

It is an arithmetic number, because the mean of its divisors is an integer number (5574420).

Almost surely, 2^44043661 is an apocalyptic number.

It is an amenable number.

44043661 is a deficient number, since it is larger than the sum of its proper divisors (551699).

44043661 is a wasteful number, since it uses less digits than its factorization.

44043661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 44043661 is about 6636.5398363906. The cubic root of 44043661 is about 353.1515665501.

The spelling of 44043661 in words is "forty-four million, forty-three thousand, six hundred sixty-one".