44139406 has 8 divisors (see below), whose sum is σ = 66238344. Its totient is φ = 22059960.

The previous prime is 44139383. The next prime is 44139419. The reversal of 44139406 is 60493144.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4081 + ... + 10243.

It is an arithmetic number, because the mean of its divisors is an integer number (8279793).

Almost surely, 2^44139406 is an apocalyptic number.

44139406 is a deficient number, since it is larger than the sum of its proper divisors (22098938).

44139406 is a wasteful number, since it uses less digits than its factorization.

44139406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9746.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 44139406 is about 6643.7493932267. The cubic root of 44139406 is about 353.4072826906.

The spelling of 44139406 in words is "forty-four million, one hundred thirty-nine thousand, four hundred six".