6460220 has 24 divisors (see below), whose sum is σ = 14610624. Its totient is φ = 2385216.

The previous prime is 6460213. The next prime is 6460231. The reversal of 6460220 is 220646.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 6460192 and 6460201.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 12164 + ... + 12683.

It is an arithmetic number, because the mean of its divisors is an integer number (608776).

Almost surely, 2^6460220 is an apocalyptic number.

It is an amenable number.

6460220 is an abundant number, since it is smaller than the sum of its proper divisors (8150404).

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

6460220 is a wasteful number, since it uses less digits than its factorization.

6460220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24869 (or 24867 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 6460220 is about 2541.6962839804. The cubic root of 6460220 is about 186.2440623905.

Adding to 6460220 its reverse (220646), we get a palindrome (6680866).

The spelling of 6460220 in words is "six million, four hundred sixty thousand, two hundred twenty".