6406242331 has 16 divisors (see below), whose sum is σ = 6804889600. Its totient is φ = 6013865088.

The previous prime is 6406242329. The next prime is 6406242389. The reversal of 6406242331 is 1332426046.

It is a cyclic number.

It is not a de Polignac number, because 6406242331 - 2¹ = 6406242329 is a prime.

It is a super-2 number, since 2×6406242331² = 82079881606992627122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6406242293 and 6406242302.

It is not an unprimeable number, because it can be changed into a prime (6406242301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3592066 + ... + 3593848.

It is an arithmetic number, because the mean of its divisors is an integer number (425305600).

Almost surely, 2^6406242331 is an apocalyptic number.

6406242331 is a deficient number, since it is larger than the sum of its proper divisors (398647269).

6406242331 is a wasteful number, since it uses less digits than its factorization.

6406242331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3418.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 6406242331 is about 80039.0050600331. The cubic root of 6406242331 is about 1857.2389692532.

Adding to 6406242331 its reverse (1332426046), we get a palindrome (7738668377).

The spelling of 6406242331 in words is "six billion, four hundred six million, two hundred forty-two thousand, three hundred thirty-one".