6420407130 has 24 divisors (see below), whose sum is σ = 16693058772. Its totient is φ = 1712108544.

The previous prime is 6420407113. The next prime is 6420407131. The reversal of 6420407130 is 317040246.

6420407130 is a `hidden beast` number, since 642 + 0 + 4 + 0 + 7 + 13 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6402080169 + 18326961 = 80013^2 + 4281^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6420407094 and 6420407103.

It is not an unprimeable number, because it can be changed into a prime (6420407131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35668839 + ... + 35669018.

Almost surely, 2^6420407130 is an apocalyptic number.

6420407130 is an abundant number, since it is smaller than the sum of its proper divisors (10272651642).

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

6420407130 is a wasteful number, since it uses less digits than its factorization.

6420407130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71337870 (or 71337867 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 6420407130 is about 80127.4430516786. The cubic root of 6420407130 is about 1858.6068044435.

Adding to 6420407130 its reverse (317040246), we get a palindrome (6737447376).

The spelling of 6420407130 in words is "six billion, four hundred twenty million, four hundred seven thousand, one hundred thirty".