2028518 has 4 divisors (see below), whose sum is σ = 3042780. Its totient is φ = 1014258.

The previous prime is 2028517. The next prime is 2028527. The reversal of 2028518 is 8158202.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2028518² = 8229770552648, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507128 + ... + 507131.

It is an arithmetic number, because the mean of its divisors is an integer number (760695).

2^2028518 is an apocalyptic number.

2028518 is a deficient number, since it is larger than the sum of its proper divisors (1014262).

2028518 is a wasteful number, since it uses less digits than its factorization.

2028518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014261.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 2028518 is about 1424.2605098787. The cubic root of 2028518 is about 126.5881215110.

The spelling of 2028518 in words is "two million, twenty-eight thousand, five hundred eighteen".