6248640406 has 8 divisors (see below), whose sum is σ = 9491605920. Its totient is φ = 3084771768.

The previous prime is 6248640403. The next prime is 6248640451. The reversal of 6248640406 is 6040468426.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6248640403) 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, 19774021 + ... + 19774336.

It is an arithmetic number, because the mean of its divisors is an integer number (1186450740).

Almost surely, 2^6248640406 is an apocalyptic number.

6248640406 is a deficient number, since it is larger than the sum of its proper divisors (3242965514).

6248640406 is a wasteful number, since it uses less digits than its factorization.

6248640406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39548438.

The product of its (nonzero) digits is 221184, while the sum is 40.

The square root of 6248640406 is about 79048.3422090558. The cubic root of 6248640406 is about 1841.8821719772.

The spelling of 6248640406 in words is "six billion, two hundred forty-eight million, six hundred forty thousand, four hundred six".