4030057 has 4 divisors (see below), whose sum is σ = 4067140. Its totient is φ = 3992976.

The previous prime is 4030051. The next prime is 4030063. The reversal of 4030057 is 7500304.

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

It is an interprime number because it is at equal distance from previous prime (4030051) and next prime (4030063).

It can be written as a sum of positive squares in 2 ways, for example, as 1752976 + 2277081 = 1324^2 + 1509^2 .

It is a cyclic number.

It is not a de Polignac number, because 4030057 - 2¹¹ = 4028009 is a prime.

It is the 2008-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4030051) by changing a digit.

It is a nontrivial repunit in base 2007.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18378 + ... + 18595.

It is an arithmetic number, because the mean of its divisors is an integer number (1016785).

Almost surely, 2^4030057 is an apocalyptic number.

It is an amenable number.

4030057 is a deficient number, since it is larger than the sum of its proper divisors (37083).

4030057 is a wasteful number, since it uses less digits than its factorization.

4030057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37082.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 4030057 is about 2007.5001867995. The cubic root of 4030057 is about 159.1367177127.

The spelling of 4030057 in words is "four million, thirty thousand, fifty-seven".