6629046840 has 192 divisors, whose sum is σ = 23741958240. Its totient is φ = 1593768960.

The previous prime is 6629046817. The next prime is 6629046859. The reversal of 6629046840 is 486409266.

6629046840 is a `hidden beast` number, since 6 + 62 + 90 + 468 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 47 ways as a sum of consecutive naturals, for example, 184770 + ... + 217710.

Almost surely, 2^6629046840 is an apocalyptic number.

6629046840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6629046840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11870979120).

6629046840 is an abundant number, since it is smaller than the sum of its proper divisors (17112911400).

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

6629046840 is a wasteful number, since it uses less digits than its factorization.

6629046840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33014 (or 33007 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 6629046840 is about 81418.9587258398. The cubic root of 6629046840 is about 1878.5252165653.

The spelling of 6629046840 in words is "six billion, six hundred twenty-nine million, forty-six thousand, eight hundred forty".