2440428065 has 8 divisors (see below), whose sum is σ = 2943688488. Its totient is φ = 1942225920.

The previous prime is 2440428059. The next prime is 2440428079. The reversal of 2440428065 is 5608240442.

2440428065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 690428176 + 1749999889 = 26276^2 + 41833^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2440428065 - 2¹⁸ = 2440165921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1263506 + ... + 1265435.

It is an arithmetic number, because the mean of its divisors is an integer number (367961061).

Almost surely, 2^2440428065 is an apocalyptic number.

It is an amenable number.

2440428065 is a deficient number, since it is larger than the sum of its proper divisors (503260423).

2440428065 is a wasteful number, since it uses less digits than its factorization.

2440428065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2529139.

The product of its (nonzero) digits is 61440, while the sum is 35.

The square root of 2440428065 is about 49400.6889122004. The cubic root of 2440428065 is about 1346.3418227340.

The spelling of 2440428065 in words is "two billion, four hundred forty million, four hundred twenty-eight thousand, sixty-five".