6632384440 has 64 divisors (see below), whose sum is σ = 16297601760. Its totient is φ = 2409093120.

The previous prime is 6632384401. The next prime is 6632384467. The reversal of 6632384440 is 444832366.

It is a super-2 number, since 2×6632384440² = 87977046719908227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 6632384393 and 6632384402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411412 + ... + 427228.

Almost surely, 2^6632384440 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 6632384440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8148800880).

6632384440 is an abundant number, since it is smaller than the sum of its proper divisors (9665217320).

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

6632384440 is a wasteful number, since it uses less digits than its factorization.

6632384440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16792 (or 16788 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The square root of 6632384440 is about 81439.4526013037. The cubic root of 6632384440 is about 1878.8404310033.

The spelling of 6632384440 in words is "six billion, six hundred thirty-two million, three hundred eighty-four thousand, four hundred forty".