4125618 has 48 divisors (see below), whose sum is σ = 10333440. Its totient is φ = 1165248.

The previous prime is 4125601. The next prime is 4125619. The reversal of 4125618 is 8165214.

4125618 is a `hidden beast` number, since 41 + 2 + 5 + 618 = 666.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 4125591 and 4125600.

It is not an unprimeable number, because it can be changed into a prime (4125619) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17143 + ... + 17381.

It is an arithmetic number, because the mean of its divisors is an integer number (215280).

Almost surely, 2^4125618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4125618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5166720).

4125618 is an abundant number, since it is smaller than the sum of its proper divisors (6207822).

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

4125618 is a wasteful number, since it uses less digits than its factorization.

4125618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 388 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 4125618 is about 2031.1617365439. The cubic root of 4125618 is about 160.3847252159.

The spelling of 4125618 in words is "four million, one hundred twenty-five thousand, six hundred eighteen".