6006988440 has 96 divisors (see below), whose sum is σ = 19545299280. Its totient is φ = 1600010496.

The previous prime is 6006988387. The next prime is 6006988459. The reversal of 6006988440 is 448896006.

It is a happy number.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 317322 + ... + 335718.

Almost surely, 2^6006988440 is an apocalyptic number.

6006988440 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 6006988440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9772649640).

6006988440 is an abundant number, since it is smaller than the sum of its proper divisors (13538310840).

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

6006988440 is a wasteful number, since it uses less digits than its factorization.

6006988440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19321 (or 19314 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 6006988440 is about 77504.7639826095. The cubic root of 6006988440 is about 1817.8258101178.

The spelling of 6006988440 in words is "six billion, six million, nine hundred eighty-eight thousand, four hundred forty".