6430426236 has 72 divisors (see below), whose sum is σ = 17529679440. Its totient is φ = 1975809024.

The previous prime is 6430426229. The next prime is 6430426243. The reversal of 6430426236 is 6326240346.

6430426236 is a `hidden beast` number, since 64 + 304 + 262 + 36 = 666.

It is an interprime number because it is at equal distance from previous prime (6430426229) and next prime (6430426243).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 6430426236.

It is a congruent number.

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 in 23 ways as a sum of consecutive naturals, for example, 336556 + ... + 355148.

It is an arithmetic number, because the mean of its divisors is an integer number (243467770).

Almost surely, 2^6430426236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6430426236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8764839720).

6430426236 is an abundant number, since it is smaller than the sum of its proper divisors (11099253204).

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

6430426236 is a wasteful number, since it uses less digits than its factorization.

6430426236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19355 (or 19350 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

The square root of 6430426236 is about 80189.9384960482. The cubic root of 6430426236 is about 1859.5730931443.

The spelling of 6430426236 in words is "six billion, four hundred thirty million, four hundred twenty-six thousand, two hundred thirty-six".