4257028 has 6 divisors (see below), whose sum is σ = 7449806. Its totient is φ = 2128512.

The previous prime is 4257023. The next prime is 4257037. The reversal of 4257028 is 8207524.

It can be written as a sum of positive squares in only one way, i.e., 4251844 + 5184 = 2062^2 + 72^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4256987 and 4257005.

It is not an unprimeable number, because it can be changed into a prime (4257023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532125 + ... + 532132.

Almost surely, 2^4257028 is an apocalyptic number.

It is an amenable number.

4257028 is a deficient number, since it is larger than the sum of its proper divisors (3192778).

4257028 is a wasteful number, since it uses less digits than its factorization.

4257028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064261 (or 1064259 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 4257028 is about 2063.2566490866. The cubic root of 4257028 is about 162.0698271352.

The spelling of 4257028 in words is "four million, two hundred fifty-seven thousand, twenty-eight".