2128104 has 48 divisors (see below), whose sum is σ = 6289920. Its totient is φ = 644640.

The previous prime is 2128103. The next prime is 2128153. The reversal of 2128104 is 4018212.

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 (2128103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 552 + ... + 2135.

It is an arithmetic number, because the mean of its divisors is an integer number (131040).

2^2128104 is an apocalyptic number.

2128104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2128104 is an abundant number, since it is smaller than the sum of its proper divisors (4161816).

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

2128104 is a wasteful number, since it uses less digits than its factorization.

2128104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710 (or 2703 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 2128104 is about 1458.8022484216. The cubic root of 2128104 is about 128.6266471809.

The spelling of 2128104 in words is "two million, one hundred twenty-eight thousand, one hundred four".