6291343240 has 96 divisors (see below), whose sum is σ = 17733363480. Its totient is φ = 1991098368.

The previous prime is 6291343199. The next prime is 6291343301. The reversal of 6291343240 is 423431926.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4232543364 + 2058799876 = 65058^2 + 45374^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6291343196 and 6291343205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97977 + ... + 148936.

Almost surely, 2^6291343240 is an apocalyptic number.

It is an amenable number.

6291343240 is an abundant number, since it is smaller than the sum of its proper divisors (11442020240).

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

6291343240 is a wasteful number, since it uses less digits than its factorization.

6291343240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246951 (or 246940 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 6291343240 is about 79317.9881237541. The cubic root of 6291343240 is about 1846.0684210063.

The spelling of 6291343240 in words is "six billion, two hundred ninety-one million, three hundred forty-three thousand, two hundred forty".