4152420 has 144 divisors (see below), whose sum is σ = 14152320. Its totient is φ = 979968.

The previous prime is 4152409. The next prime is 4152433. The reversal of 4152420 is 242514.

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 = 4152393 and 4152402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70351 + ... + 70409.

It is an arithmetic number, because the mean of its divisors is an integer number (98280).

Almost surely, 2^4152420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4152420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7076160).

4152420 is an abundant number, since it is smaller than the sum of its proper divisors (9999900).

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

4152420 is a wasteful number, since it uses less digits than its factorization.

4152420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 4152420 is about 2037.7487578207. The cubic root of 4152420 is about 160.7312879367.

Adding to 4152420 its reverse (242514), we get a palindrome (4394934).

The spelling of 4152420 in words is "four million, one hundred fifty-two thousand, four hundred twenty".