4049028 has 30 divisors (see below), whose sum is σ = 10585806. Its totient is φ = 1349568.

The previous prime is 4048991. The next prime is 4049029. The reversal of 4049028 is 8209404.

It can be written as a sum of positive squares in only one way, i.e., 3504384 + 544644 = 1872^2 + 738^2 .

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4048992 and 4049010.

It is not an unprimeable number, because it can be changed into a prime (4049029) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5925 + ... + 6572.

Almost surely, 2^4049028 is an apocalyptic number.

It is an amenable number.

4049028 is an abundant number, since it is smaller than the sum of its proper divisors (6536778).

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

4049028 is a wasteful number, since it uses less digits than its factorization.

4049028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12513 (or 12502 counting only the distinct ones).

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

The square root of 4049028 is about 2012.2196699168. The cubic root of 4049028 is about 159.3860324543.

The spelling of 4049028 in words is "four million, forty-nine thousand, twenty-eight".