4025530 has 16 divisors (see below), whose sum is σ = 7627680. Its totient is φ = 1525392.

The previous prime is 4025521. The next prime is 4025543. The reversal of 4025530 is 355204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 4025498 and 4025507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10404 + ... + 10783.

It is an arithmetic number, because the mean of its divisors is an integer number (476730).

Almost surely, 2^4025530 is an apocalyptic number.

4025530 is a deficient number, since it is larger than the sum of its proper divisors (3602150).

4025530 is a wasteful number, since it uses less digits than its factorization.

4025530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21213.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 4025530 is about 2006.3723482943. The cubic root of 4025530 is about 159.0771088091.

The spelling of 4025530 in words is "four million, twenty-five thousand, five hundred thirty".