2438758645 has 4 divisors (see below), whose sum is σ = 2926510380. Its totient is φ = 1951006912.

The previous prime is 2438758643. The next prime is 2438758657. The reversal of 2438758645 is 5468578342.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 984327876 + 1454430769 = 31374^2 + 38137^2 .

It is a cyclic number.

It is not a de Polignac number, because 2438758645 - 2¹ = 2438758643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2438758592 and 2438758601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2438758643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243875860 + ... + 243875869.

It is an arithmetic number, because the mean of its divisors is an integer number (731627595).

Almost surely, 2^2438758645 is an apocalyptic number.

It is an amenable number.

2438758645 is a deficient number, since it is larger than the sum of its proper divisors (487751735).

2438758645 is an equidigital number, since it uses as much as digits as its factorization.

2438758645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487751734.

The product of its digits is 6451200, while the sum is 52.

The square root of 2438758645 is about 49383.7892936538. The cubic root of 2438758645 is about 1346.0347560218.

The spelling of 2438758645 in words is "two billion, four hundred thirty-eight million, seven hundred fifty-eight thousand, six hundred forty-five".