9004042 has 4 divisors (see below), whose sum is σ = 13506066. Its totient is φ = 4502020.

The previous prime is 9004031. The next prime is 9004057. The reversal of 9004042 is 2404009.

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., 8346321 + 657721 = 2889^2 + 811^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2251009 + ... + 2251012.

Almost surely, 2^9004042 is an apocalyptic number.

9004042 is a deficient number, since it is larger than the sum of its proper divisors (4502024).

9004042 is a wasteful number, since it uses less digits than its factorization.

9004042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4502023.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 9004042 is about 3000.6735910459. The cubic root of 9004042 is about 208.0395172699.

The spelling of 9004042 in words is "nine million, four thousand, forty-two".