2028430 has 16 divisors (see below), whose sum is σ = 3673584. Its totient is φ = 806400.

The previous prime is 2028413. The next prime is 2028431. The reversal of 2028430 is 348202.

It is a happy number.

It is a super-2 number, since 2×2028430² = 8229056529800, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2028398 and 2028407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405 + ... + 2455.

It is an arithmetic number, because the mean of its divisors is an integer number (229599).

2^2028430 is an apocalyptic number.

2028430 is a deficient number, since it is larger than the sum of its proper divisors (1645154).

2028430 is a wasteful number, since it uses less digits than its factorization.

2028430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2028430 is about 1424.2296163189. The cubic root of 2028430 is about 126.5862909602.

The spelling of 2028430 in words is "two million, twenty-eight thousand, four hundred thirty".