44139407 has 8 divisors (see below), whose sum is σ = 48432384. Its totient is φ = 39974688.

The previous prime is 44139383. The next prime is 44139419. The reversal of 44139407 is 70493144.

It is a happy number.

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

It is not a de Polignac number, because 44139407 - 2¹⁰ = 44138383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44139437) 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, 31343 + ... + 32720.

It is an arithmetic number, because the mean of its divisors is an integer number (6054048).

Almost surely, 2^44139407 is an apocalyptic number.

44139407 is a deficient number, since it is larger than the sum of its proper divisors (4292977).

44139407 is a wasteful number, since it uses less digits than its factorization.

44139407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64129.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 44139407 is about 6643.7494684854. The cubic root of 44139407 is about 353.4072853595.

The spelling of 44139407 in words is "forty-four million, one hundred thirty-nine thousand, four hundred seven".