44409139 has 8 divisors (see below), whose sum is σ = 46189760. Its totient is φ = 42659136.

The previous prime is 44409133. The next prime is 44409161. The reversal of 44409139 is 93190444.

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 44409139 - 2⁹ = 44408627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44409133) 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, 4674 + ... + 10519.

It is an arithmetic number, because the mean of its divisors is an integer number (5773720).

Almost surely, 2^44409139 is an apocalyptic number.

44409139 is a deficient number, since it is larger than the sum of its proper divisors (1780621).

44409139 is a wasteful number, since it uses less digits than its factorization.

44409139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15309.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 44409139 is about 6664.0182322680. The cubic root of 44409139 is about 354.1257041314.

The spelling of 44409139 in words is "forty-four million, four hundred nine thousand, one hundred thirty-nine".