4155028 has 6 divisors (see below), whose sum is σ = 7271306. Its totient is φ = 2077512.

The previous prime is 4155017. The next prime is 4155029. The reversal of 4155028 is 8205514.

It can be written as a sum of positive squares in only one way, i.e., 2521744 + 1633284 = 1588^2 + 1278^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4154993 and 4155011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4155029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519375 + ... + 519382.

Almost surely, 2^4155028 is an apocalyptic number.

It is an amenable number.

4155028 is a deficient number, since it is larger than the sum of its proper divisors (3116278).

4155028 is a wasteful number, since it uses less digits than its factorization.

4155028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038761 (or 1038759 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 4155028 is about 2038.3885792459. The cubic root of 4155028 is about 160.7649309264.

The spelling of 4155028 in words is "four million, one hundred fifty-five thousand, twenty-eight".