2445665442 has 32 divisors (see below), whose sum is σ = 5480218944. Its totient is φ = 721080000.

The previous prime is 2445665429. The next prime is 2445665447.

2445665442 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 2445665394 and 2445665403.

It is not an unprimeable number, because it can be changed into a prime (2445665447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498309 + ... + 503192.

It is an arithmetic number, because the mean of its divisors is an integer number (171256842).

Almost surely, 2^2445665442 is an apocalyptic number.

2445665442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2445665442 is an abundant number, since it is smaller than the sum of its proper divisors (3034553502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2445665442 is a wasteful number, since it uses less digits than its factorization.

2445665442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001554.

The product of its digits is 921600, while the sum is 42.

The square root of 2445665442 is about 49453.6696515031. The cubic root of 2445665442 is about 1347.3042579126.

It can be divided in two parts, 24456 and 65442, that added together give a palindrome (89898).

The spelling of 2445665442 in words is "two billion, four hundred forty-five million, six hundred sixty-five thousand, four hundred forty-two".