6340239369 has 24 divisors (see below), whose sum is σ = 9782676072. Its totient is φ = 3942973440.

The previous prime is 6340239359. The next prime is 6340239379. The reversal of 6340239369 is 9639320436.

6340239369 is a `hidden beast` number, since 634 + 0 + 2 + 3 + 9 + 3 + 6 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (6340239359) and next prime (6340239379).

It can be written as a sum of positive squares in 4 ways, for example, as 152843769 + 6187395600 = 12363^2 + 78660^2 .

It is not a de Polignac number, because 6340239369 - 2¹² = 6340235273 is a prime.

It is a super-2 number, since 2×6340239369² = 80397270512435036322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6340239349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166072 + ... + 200649.

It is an arithmetic number, because the mean of its divisors is an integer number (407611503).

Almost surely, 2^6340239369 is an apocalyptic number.

It is an amenable number.

6340239369 is a deficient number, since it is larger than the sum of its proper divisors (3442436703).

6340239369 is a wasteful number, since it uses less digits than its factorization.

6340239369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366857 (or 366854 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 45.

The square root of 6340239369 is about 79625.6200541007. The cubic root of 6340239369 is about 1850.8386136105.

The spelling of 6340239369 in words is "six billion, three hundred forty million, two hundred thirty-nine thousand, three hundred sixty-nine".