4440256145 has 48 divisors (see below), whose sum is σ = 6149924352. Its totient is φ = 3069031680.

The previous prime is 4440256109. The next prime is 4440256181. The reversal of 4440256145 is 5416520444.

It is an interprime number because it is at equal distance from previous prime (4440256109) and next prime (4440256181).

It is not a de Polignac number, because 4440256145 - 2²⁶ = 4373147281 is a prime.

It is a super-2 number, since 2×4440256145² = 39431749266420522050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 911015 + ... + 915875.

It is an arithmetic number, because the mean of its divisors is an integer number (128123424).

Almost surely, 2^4440256145 is an apocalyptic number.

It is an amenable number.

4440256145 is a deficient number, since it is larger than the sum of its proper divisors (1709668207).

4440256145 is a wasteful number, since it uses less digits than its factorization.

4440256145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4962 (or 4949 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

The square root of 4440256145 is about 66635.2470168754. The cubic root of 4440256145 is about 1643.6247588367.

Adding to 4440256145 its reverse (5416520444), we get a palindrome (9856776589).

The spelling of 4440256145 in words is "four billion, four hundred forty million, two hundred fifty-six thousand, one hundred forty-five".