6444212430 has 16 divisors (see below), whose sum is σ = 15466109904. Its totient is φ = 1718456640.

The previous prime is 6444212429. The next prime is 6444212431. The reversal of 6444212430 is 342124446.

It is an interprime number because it is at equal distance from previous prime (6444212429) and next prime (6444212431).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 214807081 = 6444212430 / (6 + 4 + 4 + 4 + 2 + 1 + 2 + 4 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444212431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107403511 + ... + 107403570.

It is an arithmetic number, because the mean of its divisors is an integer number (966631869).

Almost surely, 2^6444212430 is an apocalyptic number.

6444212430 is an abundant number, since it is smaller than the sum of its proper divisors (9021897474).

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

6444212430 is a wasteful number, since it uses less digits than its factorization.

6444212430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214807091.

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 6444212430 is about 80275.8520976265. The cubic root of 6444212430 is about 1860.9010578138.

Adding to 6444212430 its reverse (342124446), we get a palindrome (6786336876).

The spelling of 6444212430 in words is "six billion, four hundred forty-four million, two hundred twelve thousand, four hundred thirty".