4030545 has 16 divisors (see below), whose sum is σ = 6491520. Its totient is φ = 2135424.

The previous prime is 4030541. The next prime is 4030553. The reversal of 4030545 is 5450304.

It is a happy number.

It is not a de Polignac number, because 4030545 - 2² = 4030541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4030541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1701 + ... + 3309.

It is an arithmetic number, because the mean of its divisors is an integer number (405720).

Almost surely, 2^4030545 is an apocalyptic number.

It is an amenable number.

4030545 is a deficient number, since it is larger than the sum of its proper divisors (2460975).

4030545 is a wasteful number, since it uses less digits than its factorization.

4030545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 4030545 is about 2007.6217273182. The cubic root of 4030545 is about 159.1431407471.

Adding to 4030545 its reverse (5450304), we get a palindrome (9480849).

The spelling of 4030545 in words is "four million, thirty thousand, five hundred forty-five".