4028049 has 15 divisors (see below), whose sum is σ = 6044313. Its totient is φ = 2673324.

The previous prime is 4028009. The next prime is 4028069. The reversal of 4028049 is 9408204.

The square root of 4028049 is 2007.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 4028049 - 2¹⁵ = 3995281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4028009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 17952 + ... + 18174.

Almost surely, 2^4028049 is an apocalyptic number.

4028049 is the 2007-th square number.

4028049 is the 1004-th centered octagonal number.

It is an amenable number.

4028049 is a deficient number, since it is larger than the sum of its proper divisors (2016264).

4028049 is an frugal number, since it uses more digits than its factorization.

4028049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The cubic root of 4028049 is about 159.1102830481.

Multiplying 4028049 by its product of nonzero digits (2304), we get a square (9280624896 = 96336²).

The spelling of 4028049 in words is "four million, twenty-eight thousand, forty-nine".