44905663 has 4 divisors (see below), whose sum is σ = 48988008. Its totient is φ = 40823320.

The previous prime is 44905661. The next prime is 44905669. The reversal of 44905663 is 36650944.

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 44905663 - 2¹ = 44905661 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 (44905661) 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, 2041156 + ... + 2041177.

It is an arithmetic number, because the mean of its divisors is an integer number (12247002).

Almost surely, 2^44905663 is an apocalyptic number.

44905663 is a deficient number, since it is larger than the sum of its proper divisors (4082345).

44905663 is a wasteful number, since it uses less digits than its factorization.

44905663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4082344.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 44905663 is about 6701.1687786535. The cubic root of 44905663 is about 355.4406034900.

It can be divided in two parts, 4490 and 5663, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 44905663 in words is "forty-four million, nine hundred five thousand, six hundred sixty-three".