6199133440 has 72 divisors (see below), whose sum is σ = 14892481800. Its totient is φ = 2472370176.

The previous prime is 6199133431. The next prime is 6199133449. The reversal of 6199133440 is 443319916.

It is an interprime number because it is at equal distance from previous prime (6199133431) and next prime (6199133449).

It can be written as a sum of positive squares in 4 ways, for example, as 219513856 + 5979619584 = 14816^2 + 77328^2 .

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 = 6199133393 and 6199133402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6199133449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439782 + ... + 453658.

It is an arithmetic number, because the mean of its divisors is an integer number (206840025).

Almost surely, 2^6199133440 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 6199133440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7446240900).

6199133440 is an abundant number, since it is smaller than the sum of its proper divisors (8693348360).

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

6199133440 is a wasteful number, since it uses less digits than its factorization.

6199133440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14247 (or 14233 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 6199133440 is about 78734.5758863284. The cubic root of 6199133440 is about 1837.0049573604.

The spelling of 6199133440 in words is "six billion, one hundred ninety-nine million, one hundred thirty-three thousand, four hundred forty".