6420244152 has 64 divisors (see below), whose sum is σ = 18477515520. Its totient is φ = 1820959488.

The previous prime is 6420244151. The next prime is 6420244189. The reversal of 6420244152 is 2514420246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6420244151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116458 + ... + 162489.

It is an arithmetic number, because the mean of its divisors is an integer number (288711180).

Almost surely, 2^6420244152 is an apocalyptic number.

It is an amenable number.

6420244152 is an abundant number, since it is smaller than the sum of its proper divisors (12057271368).

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

6420244152 is a wasteful number, since it uses less digits than its factorization.

6420244152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279100 (or 279096 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 6420244152 is about 80126.4260528323. The cubic root of 6420244152 is about 1858.5910777886.

Adding to 6420244152 its reverse (2514420246), we get a palindrome (8934664398).

The spelling of 6420244152 in words is "six billion, four hundred twenty million, two hundred forty-four thousand, one hundred fifty-two".