2028416 has 64 divisors (see below), whose sum is σ = 4626720. Its totient is φ = 878592.

The previous prime is 2028413. The next prime is 2028431. The reversal of 2028416 is 6148202.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×2028416² = 8228942938112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 2028391 and 2028400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38246 + ... + 38298.

2^2028416 is an apocalyptic number.

2028416 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2028416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2313360).

2028416 is an abundant number, since it is smaller than the sum of its proper divisors (2598304).

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

2028416 is a wasteful number, since it uses less digits than its factorization.

2028416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2028416 is about 1424.2247013726. The cubic root of 2028416 is about 126.5859997313.

The spelling of 2028416 in words is "two million, twenty-eight thousand, four hundred sixteen".