4025845620 has 144 divisors (see below), whose sum is σ = 12364934400. Its totient is φ = 1060190208.

The previous prime is 4025845619. The next prime is 4025845639. The reversal of 4025845620 is 265485204.

It is a happy number.

4025845620 is a `hidden beast` number, since 4 + 0 + 2 + 584 + 56 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5981604 + ... + 5982276.

It is an arithmetic number, because the mean of its divisors is an integer number (85867600).

Almost surely, 2^4025845620 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 4025845620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6182467200).

4025845620 is an abundant number, since it is smaller than the sum of its proper divisors (8339088780).

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

4025845620 is a wasteful number, since it uses less digits than its factorization.

4025845620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054 (or 1049 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 4025845620 is about 63449.5517714664. The cubic root of 4025845620 is about 1590.8126615858.

The spelling of 4025845620 in words is "four billion, twenty-five million, eight hundred forty-five thousand, six hundred twenty".