2604428 has 12 divisors (see below), whose sum is σ = 4756080. Its totient is φ = 1245552.

The previous prime is 2604401. The next prime is 2604431. The reversal of 2604428 is 8244062.

It is a junction number, because it is equal to n+sod(n) for n = 2604397 and 2604406.

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 in 3 ways as a sum of consecutive naturals, for example, 14063 + ... + 14246.

It is an arithmetic number, because the mean of its divisors is an integer number (396340).

2^2604428 is an apocalyptic number.

It is an amenable number.

2604428 is a deficient number, since it is larger than the sum of its proper divisors (2151652).

2604428 is a wasteful number, since it uses less digits than its factorization.

2604428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28336 (or 28334 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 2604428 is about 1613.8240300603. The cubic root of 2604428 is about 137.5849040362.

The spelling of 2604428 in words is "two million, six hundred four thousand, four hundred twenty-eight".