4030045 has 4 divisors (see below), whose sum is σ = 4836060. Its totient is φ = 3224032.

The previous prime is 4030007. The next prime is 4030051. The reversal of 4030045 is 5400304.

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 2033476 + 1996569 = 1426^2 + 1413^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4030045 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403000 + ... + 403009.

It is an arithmetic number, because the mean of its divisors is an integer number (1209015).

Almost surely, 2^4030045 is an apocalyptic number.

It is an amenable number.

4030045 is a deficient number, since it is larger than the sum of its proper divisors (806015).

4030045 is an equidigital number, since it uses as much as digits as its factorization.

4030045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806014.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 4030045 is about 2007.4971980055. The cubic root of 4030045 is about 159.1365597627.

Adding to 4030045 its reverse (5400304), we get a palindrome (9430349).

The spelling of 4030045 in words is "four million, thirty thousand, forty-five".