44672641 has 4 divisors (see below), whose sum is σ = 48109012. Its totient is φ = 41236272.

The previous prime is 44672609. The next prime is 44672659. The reversal of 44672641 is 14627644.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2876416 + 41796225 = 1696^2 + 6465^2 .

It is a cyclic number.

It is not a de Polignac number, because 44672641 - 2⁵ = 44672609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44672597 and 44672606.

It is not an unprimeable number, because it can be changed into a prime (44672941) by changing a digit.

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, 1718166 + ... + 1718191.

It is an arithmetic number, because the mean of its divisors is an integer number (12027253).

Almost surely, 2^44672641 is an apocalyptic number.

It is an amenable number.

44672641 is a deficient number, since it is larger than the sum of its proper divisors (3436371).

44672641 is a wasteful number, since it uses less digits than its factorization.

44672641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436370.

The product of its digits is 32256, while the sum is 34.

The square root of 44672641 is about 6683.7594959723. The cubic root of 44672641 is about 354.8247260135.

The spelling of 44672641 in words is "forty-four million, six hundred seventy-two thousand, six hundred forty-one".