2128804 has 12 divisors (see below), whose sum is σ = 3762304. Its totient is φ = 1053864.

The previous prime is 2128799. The next prime is 2128823. The reversal of 2128804 is 4088212.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2172 + ... + 2995.

2^2128804 is an apocalyptic number.

It is an amenable number.

2128804 is a deficient number, since it is larger than the sum of its proper divisors (1633500).

2128804 is a wasteful number, since it uses less digits than its factorization.

2128804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274 (or 5272 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 2128804 is about 1459.0421515501. The cubic root of 2128804 is about 128.6407487446.

The spelling of 2128804 in words is "two million, one hundred twenty-eight thousand, eight hundred four".