2116428 has 12 divisors (see below), whose sum is σ = 4938360. Its totient is φ = 705472.

The previous prime is 2116427. The next prime is 2116441. The reversal of 2116428 is 8246112.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2116398 and 2116407.

It is not an unprimeable number, because it can be changed into a prime (2116423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88173 + ... + 88196.

It is an arithmetic number, because the mean of its divisors is an integer number (411530).

2^2116428 is an apocalyptic number.

It is an amenable number.

2116428 is an abundant number, since it is smaller than the sum of its proper divisors (2821932).

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

2116428 is a wasteful number, since it uses less digits than its factorization.

2116428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176376 (or 176374 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 2116428 is about 1454.7948308954. The cubic root of 2116428 is about 128.3909757732.

The spelling of 2116428 in words is "two million, one hundred sixteen thousand, four hundred twenty-eight".