40444439 has 8 divisors (see below), whose sum is σ = 46325760. Its totient is φ = 34589016.

The previous prime is 40444433. The next prime is 40444447. The reversal of 40444439 is 93444404.

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

It is not a de Polignac number, because 40444439 - 2¹⁶ = 40378903 is a prime.

It is a super-3 number, since 3×40444439³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40444433) 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, 2999 + ... + 9480.

It is an arithmetic number, because the mean of its divisors is an integer number (5790720).

Almost surely, 2^40444439 is an apocalyptic number.

40444439 is a deficient number, since it is larger than the sum of its proper divisors (5881321).

40444439 is a wasteful number, since it uses less digits than its factorization.

40444439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12949.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 40444439 is about 6359.5942480633. The cubic root of 40444439 is about 343.2571602359.

The spelling of 40444439 in words is "forty million, four hundred forty-four thousand, four hundred thirty-nine".