4054042 has 4 divisors (see below), whose sum is σ = 6081066. Its totient is φ = 2027020.

The previous prime is 4054033. The next prime is 4054069. The reversal of 4054042 is 2404504.

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., 2563201 + 1490841 = 1601^2 + 1221^2 .

It is an Ulam number.

It is an unprimeable number.

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, 1013509 + ... + 1013512.

Almost surely, 2^4054042 is an apocalyptic number.

4054042 is a deficient number, since it is larger than the sum of its proper divisors (2027024).

4054042 is a wasteful number, since it uses less digits than its factorization.

4054042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027023.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 4054042 is about 2013.4651722838. The cubic root of 4054042 is about 159.4517957206.

Adding to 4054042 its reverse (2404504), we get a palindrome (6458546).

The spelling of 4054042 in words is "four million, fifty-four thousand, forty-two", and thus it is an eban number.