44145647 has 16 divisors (see below), whose sum is σ = 54745152. Its totient is φ = 34663680.

The previous prime is 44145641. The next prime is 44145653. The reversal of 44145647 is 74654144.

It is an interprime number because it is at equal distance from previous prime (44145641) and next prime (44145653).

It is a cyclic number.

It is not a de Polignac number, because 44145647 - 2¹⁶ = 44080111 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44145641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10697 + ... + 14237.

It is an arithmetic number, because the mean of its divisors is an integer number (3421572).

Almost surely, 2^44145647 is an apocalyptic number.

44145647 is a deficient number, since it is larger than the sum of its proper divisors (10599505).

44145647 is a wasteful number, since it uses less digits than its factorization.

44145647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698.

The product of its digits is 53760, while the sum is 35.

The square root of 44145647 is about 6644.2190662259. The cubic root of 44145647 is about 353.4239383362.

The spelling of 44145647 in words is "forty-four million, one hundred forty-five thousand, six hundred forty-seven".