4644224465 has 8 divisors (see below), whose sum is σ = 5573468520. Its totient is φ = 3715113472.

The previous prime is 4644224443. The next prime is 4644224467. The reversal of 4644224465 is 5644224464.

It can be written as a sum of positive squares in 4 ways, for example, as 72301009 + 4571923456 = 8503^2 + 67616^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4644224465 - 2⁸ = 4644224209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4644224467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76391 + ... + 122979.

It is an arithmetic number, because the mean of its divisors is an integer number (696683565).

Almost surely, 2^4644224465 is an apocalyptic number.

It is an amenable number.

4644224465 is a deficient number, since it is larger than the sum of its proper divisors (929244055).

4644224465 is a wasteful number, since it uses less digits than its factorization.

4644224465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66531.

The product of its digits is 737280, while the sum is 41.

The square root of 4644224465 is about 68148.5470498088. The cubic root of 4644224465 is about 1668.4162097279.

Subtracting 4644224465 from its reverse (5644224464), we obtain a palindrome (999999999).

It can be divided in two parts, 46442 and 24465, that added together give a palindrome (70907).

The spelling of 4644224465 in words is "four billion, six hundred forty-four million, two hundred twenty-four thousand, four hundred sixty-five".