4049928 has 24 divisors (see below), whose sum is σ = 10968750. Its totient is φ = 1349952.

The previous prime is 4049923. The next prime is 4049953. The reversal of 4049928 is 8299404.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2566404 + 1483524 = 1602^2 + 1218^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4049892 and 4049901.

It is not an unprimeable number, because it can be changed into a prime (4049921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28053 + ... + 28196.

Almost surely, 2^4049928 is an apocalyptic number.

It is an amenable number.

4049928 is an abundant number, since it is smaller than the sum of its proper divisors (6918822).

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

4049928 is a wasteful number, since it uses less digits than its factorization.

4049928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56261 (or 56254 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 4049928 is about 2012.4432911265. The cubic root of 4049928 is about 159.3978407864.

The spelling of 4049928 in words is "four million, forty-nine thousand, nine hundred twenty-eight".