4042628 has 12 divisors (see below), whose sum is σ = 7208460. Its totient is φ = 1983072.

The previous prime is 4042627. The next prime is 4042631. The reversal of 4042628 is 8262404.

It can be written as a sum of positive squares in 2 ways, for example, as 3655744 + 386884 = 1912^2 + 622^2 .

It is a super-2 number, since 2×4042628² = 32685682292768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4042597 and 4042606.

It is not an unprimeable number, because it can be changed into a prime (4042627) 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 in 3 ways as a sum of consecutive naturals, for example, 9323 + ... + 9746.

It is an arithmetic number, because the mean of its divisors is an integer number (600705).

Almost surely, 2^4042628 is an apocalyptic number.

It is an amenable number.

4042628 is a deficient number, since it is larger than the sum of its proper divisors (3165832).

4042628 is a wasteful number, since it uses less digits than its factorization.

4042628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19126 (or 19124 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 4042628 is about 2010.6287573791. The cubic root of 4042628 is about 159.3020115872.

The spelling of 4042628 in words is "four million, forty-two thousand, six hundred twenty-eight".