6433506340 has 12 divisors (see below), whose sum is σ = 13510363356. Its totient is φ = 2573402528.

The previous prime is 6433506323. The next prime is 6433506347. The reversal of 6433506340 is 436053346.

It can be written as a sum of positive squares in 2 ways, for example, as 4327797796 + 2105708544 = 65786^2 + 45888^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6433506296 and 6433506305.

It is not an unprimeable number, because it can be changed into a prime (6433506347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160837639 + ... + 160837678.

It is an arithmetic number, because the mean of its divisors is an integer number (1125863613).

Almost surely, 2^6433506340 is an apocalyptic number.

It is an amenable number.

6433506340 is an abundant number, since it is smaller than the sum of its proper divisors (7076857016).

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

6433506340 is a wasteful number, since it uses less digits than its factorization.

6433506340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321675326 (or 321675324 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 34.

The square root of 6433506340 is about 80209.1412496107. The cubic root of 6433506340 is about 1859.8699508256.

Adding to 6433506340 its reverse (436053346), we get a palindrome (6869559686).

The spelling of 6433506340 in words is "six billion, four hundred thirty-three million, five hundred six thousand, three hundred forty".