6435220 has 24 divisors (see below), whose sum is σ = 14743008. Its totient is φ = 2340000.

The previous prime is 6435179. The next prime is 6435277. The reversal of 6435220 is 225346.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 6435191 and 6435200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14406 + ... + 14845.

It is an arithmetic number, because the mean of its divisors is an integer number (614292).

Almost surely, 2^6435220 is an apocalyptic number.

It is an amenable number.

6435220 is an abundant number, since it is smaller than the sum of its proper divisors (8307788).

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

6435220 is a wasteful number, since it uses less digits than its factorization.

6435220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29271 (or 29269 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 6435220 is about 2536.7735413316. The cubic root of 6435220 is about 186.0035070831.

The spelling of 6435220 in words is "six million, four hundred thirty-five thousand, two hundred twenty".