3128204 has 24 divisors (see below), whose sum is σ = 5851440. Its totient is φ = 1458176.

The previous prime is 3128197. The next prime is 3128227. The reversal of 3128204 is 4028213.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12044 + ... + 12300.

It is an arithmetic number, because the mean of its divisors is an integer number (243810).

Almost surely, 2^3128204 is an apocalyptic number.

3128204 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3128204 is a deficient number, since it is larger than the sum of its proper divisors (2723236).

3128204 is a wasteful number, since it uses less digits than its factorization.

3128204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 3128204 is about 1768.6729488518. The cubic root of 3128204 is about 146.2508354592.

Subtracting 3128204 from its reverse (4028213), we obtain a palindrome (900009).

The spelling of 3128204 in words is "three million, one hundred twenty-eight thousand, two hundred four".