4002442513 has 2 divisors, whose sum is σ = 4002442514. Its totient is φ = 4002442512.

The previous prime is 4002442489. The next prime is 4002442523. The reversal of 4002442513 is 3152442004.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2982470544 + 1019971969 = 54612^2 + 31937^2 .

It is a cyclic number.

It is not a de Polignac number, because 4002442513 - 2⁹ = 4002442001 is a prime.

It is not a weakly prime, because it can be changed into another prime (4002442523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001221256 + 2001221257.

It is an arithmetic number, because the mean of its divisors is an integer number (2001221257).

Almost surely, 2^4002442513 is an apocalyptic number.

It is an amenable number.

4002442513 is a deficient number, since it is larger than the sum of its proper divisors (1).

4002442513 is an equidigital number, since it uses as much as digits as its factorization.

4002442513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4002442513 is about 63264.8600172323. The cubic root of 4002442513 is about 1587.7240902005.

Adding to 4002442513 its reverse (3152442004), we get a palindrome (7154884517).

The spelling of 4002442513 in words is "four billion, two million, four hundred forty-two thousand, five hundred thirteen".