6623446040 has 64 divisors (see below), whose sum is σ = 15323774400. Its totient is φ = 2575452672.

The previous prime is 6623446033. The next prime is 6623446073. The reversal of 6623446040 is 406443266.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216749 + ... + 245411.

It is an arithmetic number, because the mean of its divisors is an integer number (239433975).

Almost surely, 2^6623446040 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 6623446040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7661887200).

6623446040 is an abundant number, since it is smaller than the sum of its proper divisors (8700328360).

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

6623446040 is a wasteful number, since it uses less digits than its factorization.

6623446040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28836 (or 28832 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

The square root of 6623446040 is about 81384.5565202637. The cubic root of 6623446040 is about 1877.9960198966.

The spelling of 6623446040 in words is "six billion, six hundred twenty-three million, four hundred forty-six thousand, forty".