4025658 has 64 divisors (see below), whose sum is σ = 10144512. Its totient is φ = 1036800.

The previous prime is 4025657. The next prime is 4025683. The reversal of 4025658 is 8565204.

It is not an unprimeable number, because it can be changed into a prime (4025653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39808 + ... + 39908.

It is an arithmetic number, because the mean of its divisors is an integer number (158508).

Almost surely, 2^4025658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4025658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5072256).

4025658 is an abundant number, since it is smaller than the sum of its proper divisors (6118854).

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

4025658 is a wasteful number, since it uses less digits than its factorization.

4025658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 4025658 is about 2006.4042464070. The cubic root of 4025658 is about 159.0787948525.

The spelling of 4025658 in words is "four million, twenty-five thousand, six hundred fifty-eight".