2128418 has 16 divisors (see below), whose sum is σ = 3408000. Its totient is φ = 994032.

The previous prime is 2128409. The next prime is 2128439. The reversal of 2128418 is 8148212.

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, 2648 + ... + 3356.

It is an arithmetic number, because the mean of its divisors is an integer number (213000).

2^2128418 is an apocalyptic number.

2128418 is a deficient number, since it is larger than the sum of its proper divisors (1279582).

2128418 is a wasteful number, since it uses less digits than its factorization.

2128418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809.

The product of its digits is 1024, while the sum is 26.

The square root of 2128418 is about 1458.9098669897. The cubic root of 2128418 is about 128.6329731219.

It can be divided in two parts, 21 and 28418, that multiplied together give a triangular number (596778 = T₁₀₉₂).

The spelling of 2128418 in words is "two million, one hundred twenty-eight thousand, four hundred eighteen".