2440020442 has 4 divisors (see below), whose sum is σ = 3660030666. Its totient is φ = 1220010220.

The previous prime is 2440020437. The next prime is 2440020491. The reversal of 2440020442 is 2440200442.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2440200442 = 2 ⋅1220100221.

It can be written as a sum of positive squares in only one way, i.e., 1708912921 + 731107521 = 41339^2 + 27039^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 610005109 + ... + 610005112.

Almost surely, 2^2440020442 is an apocalyptic number.

2440020442 is a deficient number, since it is larger than the sum of its proper divisors (1220010224).

2440020442 is a wasteful number, since it uses less digits than its factorization.

2440020442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220010223.

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 2440020442 is about 49396.5630585773. The cubic root of 2440020442 is about 1346.2668590478.

Adding to 2440020442 its reverse (2440200442), we get a palindrome (4880220884).

The spelling of 2440020442 in words is "two billion, four hundred forty million, twenty thousand, four hundred forty-two".