6400132260 has 96 divisors (see below), whose sum is σ = 18741445632. Its totient is φ = 1628837760.

The previous prime is 6400132247. The next prime is 6400132279. The reversal of 6400132260 is 622310046.

6400132260 = 5806² + 5807² + ... + 5989².

It is a super-5 number, since 5×6400132260⁵ (a number of 50 digits) contains 55555 as substring. Note that it is a super-d number also for d = 3.

It is a self number, because there is not a number n which added to its sum of digits gives 6400132260.

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 31 ways as a sum of consecutive naturals, for example, 639495 + ... + 649425.

It is an arithmetic number, because the mean of its divisors is an integer number (195223392).

Almost surely, 2^6400132260 is an apocalyptic number.

6400132260 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 6400132260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9370722816).

6400132260 is an abundant number, since it is smaller than the sum of its proper divisors (12341313372).

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

6400132260 is a wasteful number, since it uses less digits than its factorization.

6400132260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10433 (or 10431 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 6400132260 is about 80000.8266207294. The cubic root of 6400132260 is about 1856.6483228682.

The spelling of 6400132260 in words is "six billion, four hundred million, one hundred thirty-two thousand, two hundred sixty".