44394639 has 4 divisors (see below), whose sum is σ = 59192856. Its totient is φ = 29596424.

The previous prime is 44394631. The next prime is 44394653. The reversal of 44394639 is 93649344.

44394639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 44394639 - 2³ = 44394631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44394639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44394631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7399104 + ... + 7399109.

It is an arithmetic number, because the mean of its divisors is an integer number (14798214).

Almost surely, 2^44394639 is an apocalyptic number.

44394639 is a deficient number, since it is larger than the sum of its proper divisors (14798217).

44394639 is a wasteful number, since it uses less digits than its factorization.

44394639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14798216.

The product of its digits is 279936, while the sum is 42.

The square root of 44394639 is about 6662.9302112509. The cubic root of 44394639 is about 354.0871581490.

The spelling of 44394639 in words is "forty-four million, three hundred ninety-four thousand, six hundred thirty-nine".