6420112 has 20 divisors (see below), whose sum is σ = 12527100. Its totient is φ = 3187328.

The previous prime is 6420109. The next prime is 6420173. The reversal of 6420112 is 2110246.

It can be written as a sum of positive squares in 2 ways, for example, as 1597696 + 4822416 = 1264^2 + 2196^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1038 + ... + 3730.

It is an arithmetic number, because the mean of its divisors is an integer number (626355).

Almost surely, 2^6420112 is an apocalyptic number.

It is an amenable number.

6420112 is a deficient number, since it is larger than the sum of its proper divisors (6106988).

6420112 is a wasteful number, since it uses less digits than its factorization.

6420112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850 (or 2844 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 6420112 is about 2533.7939932047. The cubic root of 6420112 is about 185.8578325511.

Adding to 6420112 its reverse (2110246), we get a palindrome (8530358).

The spelling of 6420112 in words is "six million, four hundred twenty thousand, one hundred twelve".