4024145 has 4 divisors (see below), whose sum is σ = 4828980. Its totient is φ = 3219312.

The previous prime is 4024133. The next prime is 4024147. The reversal of 4024145 is 5414204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2408704 + 1615441 = 1552^2 + 1271^2 .

It is a cyclic number.

It is not a de Polignac number, because 4024145 - 2⁴ = 4024129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4024147) 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 3 ways as a sum of consecutive naturals, for example, 402410 + ... + 402419.

It is an arithmetic number, because the mean of its divisors is an integer number (1207245).

Almost surely, 2^4024145 is an apocalyptic number.

It is an amenable number.

4024145 is a deficient number, since it is larger than the sum of its proper divisors (804835).

4024145 is an equidigital number, since it uses as much as digits as its factorization.

4024145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804834.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 4024145 is about 2006.0271683105. The cubic root of 4024145 is about 159.0588630073.

Adding to 4024145 its reverse (5414204), we get a palindrome (9438349).

The spelling of 4024145 in words is "four million, twenty-four thousand, one hundred forty-five".