6406420244 has 12 divisors (see below), whose sum is σ = 12812840544. Its totient is φ = 2745608664.

The previous prime is 6406420243. The next prime is 6406420261. The reversal of 6406420244 is 4420246046.

6406420244 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 6406420244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6406420243) 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 3 ways as a sum of consecutive naturals, for example, 114400334 + ... + 114400389.

It is an arithmetic number, because the mean of its divisors is an integer number (1067736712).

Almost surely, 2^6406420244 is an apocalyptic number.

It is an amenable number.

6406420244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6406420244 is a wasteful number, since it uses less digits than its factorization.

6406420244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228800734 (or 228800732 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The square root of 6406420244 is about 80040.1164666819. The cubic root of 6406420244 is about 1857.2561620620.

The spelling of 6406420244 in words is "six billion, four hundred six million, four hundred twenty thousand, two hundred forty-four".