4442640045 has 32 divisors (see below), whose sum is σ = 7251793920. Its totient is φ = 2321954880.

The previous prime is 4442640023. The next prime is 4442640071. The reversal of 4442640045 is 5400462444.

It is not a de Polignac number, because 4442640045 - 2¹² = 4442635949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4442639988 and 4442640015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165366 + ... + 190344.

It is an arithmetic number, because the mean of its divisors is an integer number (226618560).

Almost surely, 2^4442640045 is an apocalyptic number.

It is an amenable number.

4442640045 is a deficient number, since it is larger than the sum of its proper divisors (2809153875).

4442640045 is a wasteful number, since it uses less digits than its factorization.

4442640045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25225.

The product of its (nonzero) digits is 61440, while the sum is 33.

The square root of 4442640045 is about 66653.1322969896. The cubic root of 4442640045 is about 1643.9188511842.

The spelling of 4442640045 in words is "four billion, four hundred forty-two million, six hundred forty thousand, forty-five".