4120725420 has 192 divisors, whose sum is σ = 15157094400. Its totient is φ = 909377280.

The previous prime is 4120725403. The next prime is 4120725443. The reversal of 4120725420 is 245270214.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 90825 + ... + 128415.

It is an arithmetic number, because the mean of its divisors is an integer number (78943200).

Almost surely, 2^4120725420 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 4120725420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7578547200).

4120725420 is an abundant number, since it is smaller than the sum of its proper divisors (11036368980).

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

4120725420 is a wasteful number, since it uses less digits than its factorization.

4120725420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37645 (or 37637 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 4120725420 is about 64192.8767076223. The cubic root of 4120725420 is about 1603.2129993074.

Adding to 4120725420 its reverse (245270214), we get a palindrome (4365995634).

The spelling of 4120725420 in words is "four billion, one hundred twenty million, seven hundred twenty-five thousand, four hundred twenty".