6405131224 has 16 divisors (see below), whose sum is σ = 12076716600. Its totient is φ = 3184673472.

The previous prime is 6405131219. The next prime is 6405131231. The reversal of 6405131224 is 4221315046.

It is a junction number, because it is equal to n+sod(n) for n = 6405131192 and 6405131201.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 2234997 + ... + 2237860.

Almost surely, 2^6405131224 is an apocalyptic number.

It is an amenable number.

6405131224 is a deficient number, since it is larger than the sum of its proper divisors (5671585376).

6405131224 is a wasteful number, since it uses less digits than its factorization.

6405131224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4473042 (or 4473038 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 6405131224 is about 80032.0637244848. The cubic root of 6405131224 is about 1857.1315890643.

The spelling of 6405131224 in words is "six billion, four hundred five million, one hundred thirty-one thousand, two hundred twenty-four".