4549428 has 36 divisors (see below), whose sum is σ = 12385828. Its totient is φ = 1399680.

The previous prime is 4549393. The next prime is 4549439. The reversal of 4549428 is 8249454.

It can be written as a sum of positive squares in 2 ways, for example, as 338724 + 4210704 = 582^2 + 2052^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 = 4549392 and 4549401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4393 + ... + 5328.

Almost surely, 2^4549428 is an apocalyptic number.

It is an amenable number.

4549428 is an abundant number, since it is smaller than the sum of its proper divisors (7836400).

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

4549428 is a wasteful number, since it uses less digits than its factorization.

4549428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9744 (or 9739 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 4549428 is about 2132.9388176879. The cubic root of 4549428 is about 165.6986354905.

The spelling of 4549428 in words is "four million, five hundred forty-nine thousand, four hundred twenty-eight".