4042625 has 8 divisors (see below), whose sum is σ = 5045352. Its totient is φ = 3234000.

The previous prime is 4042613. The next prime is 4042627. The reversal of 4042625 is 5262404.

It can be written as a sum of positive squares in 4 ways, for example, as 744769 + 3297856 = 863^2 + 1816^2 .

It is not a de Polignac number, because 4042625 - 2⁴ = 4042609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4042625.

It is not an unprimeable number, because it can be changed into a prime (4042627) 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 7 ways as a sum of consecutive naturals, for example, 16046 + ... + 16295.

It is an arithmetic number, because the mean of its divisors is an integer number (630669).

Almost surely, 2^4042625 is an apocalyptic number.

It is an amenable number.

4042625 is a deficient number, since it is larger than the sum of its proper divisors (1002727).

4042625 is an equidigital number, since it uses as much as digits as its factorization.

4042625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32356 (or 32346 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 4042625 is about 2010.6280113437. The cubic root of 4042625 is about 159.3019721816.

The spelling of 4042625 in words is "four million, forty-two thousand, six hundred twenty-five".