44663641 has 12 divisors (see below), whose sum is σ = 51983316. Its totient is φ = 38213120.

The previous prime is 44663639. The next prime is 44663659. The reversal of 44663641 is 14636644.

It can be written as a sum of positive squares in 2 ways, for example, as 23319241 + 21344400 = 4829^2 + 4620^2 .

It is not a de Polignac number, because 44663641 - 2¹ = 44663639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44663597 and 44663606.

It is not an unprimeable number, because it can be changed into a prime (44663611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8800 + ... + 12913.

It is an arithmetic number, because the mean of its divisors is an integer number (4331943).

Almost surely, 2^44663641 is an apocalyptic number.

It is an amenable number.

44663641 is a deficient number, since it is larger than the sum of its proper divisors (7319675).

44663641 is a wasteful number, since it uses less digits than its factorization.

44663641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21752 (or 21741 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 44663641 is about 6683.0861882816. The cubic root of 44663641 is about 354.8008960888.

The spelling of 44663641 in words is "forty-four million, six hundred sixty-three thousand, six hundred forty-one".