4023538 has 4 divisors (see below), whose sum is σ = 6035310. Its totient is φ = 2011768.

The previous prime is 4023533. The next prime is 4023563. The reversal of 4023538 is 8353204.

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

It can be written as a sum of positive squares in only one way, i.e., 3869089 + 154449 = 1967^2 + 393^2 .

It is not an unprimeable number, because it can be changed into a prime (4023533) 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 as a sum of consecutive naturals, namely, 1005883 + ... + 1005886.

Almost surely, 2^4023538 is an apocalyptic number.

4023538 is a deficient number, since it is larger than the sum of its proper divisors (2011772).

4023538 is a wasteful number, since it uses less digits than its factorization.

4023538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011771.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 4023538 is about 2005.8758685422. The cubic root of 4023538 is about 159.0508651523.

The spelling of 4023538 in words is "four million, twenty-three thousand, five hundred thirty-eight".