44645671 has 4 divisors (see below), whose sum is σ = 51023632. Its totient is φ = 38267712.

The previous prime is 44645669. The next prime is 44645681. The reversal of 44645671 is 17654644.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 44645671 - 2¹ = 44645669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44645671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44645681) 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, 3188970 + ... + 3188983.

It is an arithmetic number, because the mean of its divisors is an integer number (12755908).

Almost surely, 2^44645671 is an apocalyptic number.

44645671 is a deficient number, since it is larger than the sum of its proper divisors (6377961).

44645671 is an equidigital number, since it uses as much as digits as its factorization.

44645671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6377960.

The product of its digits is 80640, while the sum is 37.

The square root of 44645671 is about 6681.7416142799. The cubic root of 44645671 is about 354.7533060937.

The spelling of 44645671 in words is "forty-four million, six hundred forty-five thousand, six hundred seventy-one".