4350420 has 36 divisors (see below), whose sum is σ = 13196820. Its totient is φ = 1160064.

The previous prime is 4350403. The next prime is 4350421. The reversal of 4350420 is 240534.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3196944 + 1153476 = 1788^2 + 1074^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4350393 and 4350402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4350421) 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, 11905 + ... + 12264.

Almost surely, 2^4350420 is an apocalyptic number.

It is an amenable number.

4350420 is an abundant number, since it is smaller than the sum of its proper divisors (8846400).

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

4350420 is a wasteful number, since it uses less digits than its factorization.

4350420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24184 (or 24179 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 4350420 is about 2085.7660463245. The cubic root of 4350420 is about 163.2464436733.

Adding to 4350420 its reverse (240534), we get a palindrome (4590954).

The spelling of 4350420 in words is "four million, three hundred fifty thousand, four hundred twenty".