6355431220 has 48 divisors (see below), whose sum is σ = 14055753600. Its totient is φ = 2407190400.

The previous prime is 6355431169. The next prime is 6355431223. The reversal of 6355431220 is 221345536.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6355431223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1404121 + ... + 1408639.

It is an arithmetic number, because the mean of its divisors is an integer number (292828200).

Almost surely, 2^6355431220 is an apocalyptic number.

It is an amenable number.

6355431220 is an abundant number, since it is smaller than the sum of its proper divisors (7700322380).

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

6355431220 is a wasteful number, since it uses less digits than its factorization.

6355431220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8248 (or 8246 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 6355431220 is about 79720.9584739170. The cubic root of 6355431220 is about 1852.3156996253.

Adding to 6355431220 its reverse (221345536), we get a palindrome (6576776756).

The spelling of 6355431220 in words is "six billion, three hundred fifty-five million, four hundred thirty-one thousand, two hundred twenty".