44639071 has 4 divisors (see below), whose sum is σ = 45081144. Its totient is φ = 44197000.

The previous prime is 44639069. The next prime is 44639081. The reversal of 44639071 is 17093644.

It is a happy number.

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 44639071 - 2¹ = 44639069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44639011) 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, 220885 + ... + 221086.

It is an arithmetic number, because the mean of its divisors is an integer number (11270286).

Almost surely, 2^44639071 is an apocalyptic number.

44639071 is a deficient number, since it is larger than the sum of its proper divisors (442073).

44639071 is a wasteful number, since it uses less digits than its factorization.

44639071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442072.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 44639071 is about 6681.2477128153. The cubic root of 44639071 is about 354.7358240911.

The spelling of 44639071 in words is "forty-four million, six hundred thirty-nine thousand, seventy-one".