2604242 has 4 divisors (see below), whose sum is σ = 3906366. Its totient is φ = 1302120.

The previous prime is 2604227. The next prime is 2604253. The reversal of 2604242 is 2424062.

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., 2193361 + 410881 = 1481^2 + 641^2 .

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, 651059 + ... + 651062.

2^2604242 is an apocalyptic number.

2604242 is a deficient number, since it is larger than the sum of its proper divisors (1302124).

2604242 is a wasteful number, since it uses less digits than its factorization.

2604242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302123.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2604242 is about 1613.7664019306. The cubic root of 2604242 is about 137.5816286655.

The spelling of 2604242 in words is "two million, six hundred four thousand, two hundred forty-two".