440416145 has 8 divisors (see below), whose sum is σ = 569153256. Its totient is φ = 325230336.

The previous prime is 440416139. The next prime is 440416147. The reversal of 440416145 is 541614044.

It can be written as a sum of positive squares in 4 ways, for example, as 77018176 + 363397969 = 8776^2 + 19063^2 .

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 440416145 - 2¹⁴ = 440399761 is a prime.

It is a super-2 number, since 2×440416145² = 387932761553322050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440416147) 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, 3387752 + ... + 3387881.

It is an arithmetic number, because the mean of its divisors is an integer number (71144157).

Almost surely, 2^440416145 is an apocalyptic number.

It is an amenable number.

440416145 is a deficient number, since it is larger than the sum of its proper divisors (128737111).

440416145 is a wasteful number, since it uses less digits than its factorization.

440416145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6775651.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 440416145 is about 20986.0940863230. The cubic root of 440416145 is about 760.8302013928.

The spelling of 440416145 in words is "four hundred forty million, four hundred sixteen thousand, one hundred forty-five".