4000044365 has 4 divisors (see below), whose sum is σ = 4800053244. Its totient is φ = 3200035488.

The previous prime is 4000044361. The next prime is 4000044401. The reversal of 4000044365 is 5634400004.

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 2670202276 + 1329842089 = 51674^2 + 36467^2 .

It is a cyclic number.

It is not a de Polignac number, because 4000044365 - 2² = 4000044361 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 (4000044361) 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, 400004432 + ... + 400004441.

It is an arithmetic number, because the mean of its divisors is an integer number (1200013311).

Almost surely, 2^4000044365 is an apocalyptic number.

It is an amenable number.

4000044365 is a deficient number, since it is larger than the sum of its proper divisors (800008879).

4000044365 is an equidigital number, since it uses as much as digits as its factorization.

4000044365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800008878.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 4000044365 is about 63245.9039385160. The cubic root of 4000044365 is about 1587.4069207005.

Adding to 4000044365 its reverse (5634400004), we get a palindrome (9634444369).

The spelling of 4000044365 in words is "four billion, forty-four thousand, three hundred sixty-five".