2042604 has 24 divisors (see below), whose sum is σ = 5295920. Its totient is φ = 680832.

The previous prime is 2042603. The next prime is 2042609. The reversal of 2042604 is 4062402.

2042604 is a `hidden beast` number, since 20 + 42 + 604 = 666.

It is a super-2 number, since 2×2042604² = 8344462201632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2042603) 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 in 7 ways as a sum of consecutive naturals, for example, 9349 + ... + 9564.

2^2042604 is an apocalyptic number.

It is an amenable number.

2042604 is an abundant number, since it is smaller than the sum of its proper divisors (3253316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2042604 is a wasteful number, since it uses less digits than its factorization.

2042604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18926 (or 18918 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2042604 is about 1429.1969773268. The cubic root of 2042604 is about 126.8804546014.

It can be divided in two parts, 20 and 42604, that added together give a palindrome (42624).

The spelling of 2042604 in words is "two million, forty-two thousand, six hundred four".