4045428 has 36 divisors (see below), whose sum is σ = 10334688. Its totient is φ = 1334160.

The previous prime is 4045421. The next prime is 4045501. The reversal of 4045428 is 8245404.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4045421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3163 + ... + 4253.

Almost surely, 2^4045428 is an apocalyptic number.

It is an amenable number.

4045428 is an abundant number, since it is smaller than the sum of its proper divisors (6289260).

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

4045428 is a wasteful number, since it uses less digits than its factorization.

4045428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204 (or 1199 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 4045428 is about 2011.3249364536. The cubic root of 4045428 is about 159.3387816200.

It can be divided in two parts, 404542 and 8, that added together give a triangular number (404550 = T₈₉₉).

The spelling of 4045428 in words is "four million, forty-five thousand, four hundred twenty-eight".