4125820 has 12 divisors (see below), whose sum is σ = 8664264. Its totient is φ = 1650320.

The previous prime is 4125787. The next prime is 4125827. The reversal of 4125820 is 285214.

It is a junction number, because it is equal to n+sod(n) for n = 4125791 and 4125800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4125827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103126 + ... + 103165.

It is an arithmetic number, because the mean of its divisors is an integer number (722022).

Almost surely, 2^4125820 is an apocalyptic number.

It is an amenable number.

4125820 is an abundant number, since it is smaller than the sum of its proper divisors (4538444).

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

4125820 is a wasteful number, since it uses less digits than its factorization.

4125820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206300 (or 206298 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 4125820 is about 2031.2114611729. The cubic root of 4125820 is about 160.3873427781.

Subtracting from 4125820 its reverse (285214), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 4125820 in words is "four million, one hundred twenty-five thousand, eight hundred twenty".