4459440867 has 32 divisors (see below), whose sum is σ = 7443187200. Its totient is φ = 2315647488.

The previous prime is 4459440857. The next prime is 4459440877. The reversal of 4459440867 is 7680449544.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4459440857) and next prime (4459440877).

It is not a de Polignac number, because 4459440867 - 2⁴ = 4459440851 is a prime.

It is a super-2 number, since 2×4459440867² = 39773225692539423378, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (4459440857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205017 + ... + 225722.

It is an arithmetic number, because the mean of its divisors is an integer number (232599600).

Almost surely, 2^4459440867 is an apocalyptic number.

4459440867 is a deficient number, since it is larger than the sum of its proper divisors (2983746333).

4459440867 is a wasteful number, since it uses less digits than its factorization.

4459440867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430795.

The product of its (nonzero) digits is 3870720, while the sum is 51.

The square root of 4459440867 is about 66779.0451189593. The cubic root of 4459440867 is about 1645.9885248220.

The spelling of 4459440867 in words is "four billion, four hundred fifty-nine million, four hundred forty thousand, eight hundred sixty-seven".