6406620246 has 24 divisors (see below), whose sum is σ = 14948781120. Its totient is φ = 1971267696.

The previous prime is 6406620223. The next prime is 6406620281. The reversal of 6406620246 is 6420266046.

6406620246 is a `hidden beast` number, since 6 + 4 + 0 + 6 + 620 + 24 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 6406620246.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13689126 + ... + 13689593.

It is an arithmetic number, because the mean of its divisors is an integer number (622865880).

Almost surely, 2^6406620246 is an apocalyptic number.

6406620246 is an abundant number, since it is smaller than the sum of its proper divisors (8542160874).

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

6406620246 is a wasteful number, since it uses less digits than its factorization.

6406620246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27378740 (or 27378737 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 6406620246 is about 80041.3658429190. The cubic root of 6406620246 is about 1857.2754890843.

The spelling of 6406620246 in words is "six billion, four hundred six million, six hundred twenty thousand, two hundred forty-six".