2028504 has 16 divisors (see below), whose sum is σ = 5071320. Its totient is φ = 676160.

The previous prime is 2028503. The next prime is 2028511. The reversal of 2028504 is 4058202.

It is a super-2 number, since 2×2028504² = 8229656956032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028503) 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, 42237 + ... + 42284.

2^2028504 is an apocalyptic number.

2028504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2028504 is an abundant number, since it is smaller than the sum of its proper divisors (3042816).

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

2028504 is a wasteful number, since it uses less digits than its factorization.

2028504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84530 (or 84526 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2028504 is about 1424.2555950390. The cubic root of 2028504 is about 126.5878302905.

The spelling of 2028504 in words is "two million, twenty-eight thousand, five hundred four".