4025628 has 36 divisors (see below), whose sum is σ = 10333960. Its totient is φ = 1321056.

The previous prime is 4025627. The next prime is 4025633. The reversal of 4025628 is 8265204.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4025627) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1578 + ... + 3246.

Almost surely, 2^4025628 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 4025628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5166980).

4025628 is an abundant number, since it is smaller than the sum of its proper divisors (6308332).

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

4025628 is a wasteful number, since it uses less digits than its factorization.

4025628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746 (or 1741 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 4025628 is about 2006.3967703323. The cubic root of 4025628 is about 159.0783996893.

The spelling of 4025628 in words is "four million, twenty-five thousand, six hundred twenty-eight".