44002439 has 4 divisors (see below), whose sum is σ = 47387256. Its totient is φ = 40617624.

The previous prime is 44002433. The next prime is 44002493. The reversal of 44002439 is 93420044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44002439 - 2¹² = 43998343 is a prime.

It is a Duffinian number.

44002439 is a modest number, since divided by 2439 gives 440 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44002433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1692389 + ... + 1692414.

It is an arithmetic number, because the mean of its divisors is an integer number (11846814).

Almost surely, 2^44002439 is an apocalyptic number.

44002439 is a deficient number, since it is larger than the sum of its proper divisors (3384817).

44002439 is a wasteful number, since it uses less digits than its factorization.

44002439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384816.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 44002439 is about 6633.4334247055. The cubic root of 44002439 is about 353.0413565330.

The spelling of 44002439 in words is "forty-four million, two thousand, four hundred thirty-nine".