44040019 has 8 divisors (see below), whose sum is σ = 45227520. Its totient is φ = 42867336.

The previous prime is 44040001. The next prime is 44040077. The reversal of 44040019 is 91004044.

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 44040019 - 2⁹ = 44039507 is a prime.

It is a super-2 number, since 2×44040019² = 3879046547040722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44040089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2454 + ... + 9700.

It is an arithmetic number, because the mean of its divisors is an integer number (5653440).

Almost surely, 2^44040019 is an apocalyptic number.

44040019 is a deficient number, since it is larger than the sum of its proper divisors (1187501).

44040019 is a wasteful number, since it uses less digits than its factorization.

44040019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7409.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 44040019 is about 6636.2654407430. The cubic root of 44040019 is about 353.1418321681.

The spelling of 44040019 in words is "forty-four million, forty thousand, nineteen".