4042618 has 12 divisors (see below), whose sum is σ = 6340698. Its totient is φ = 1932920.

The previous prime is 4042613. The next prime is 4042627. The reversal of 4042618 is 8162404.

It can be written as a sum of positive squares in only one way, i.e., 2666689 + 1375929 = 1633^2 + 1173^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4042592 and 4042601.

It is not an unprimeable number, because it can be changed into a prime (4042613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 853 + ... + 2968.

Almost surely, 2^4042618 is an apocalyptic number.

4042618 is a deficient number, since it is larger than the sum of its proper divisors (2298080).

4042618 is a wasteful number, since it uses less digits than its factorization.

4042618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3869 (or 3846 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 4042618 is about 2010.6262705933. The cubic root of 4042618 is about 159.3018802352.

The spelling of 4042618 in words is "four million, forty-two thousand, six hundred eighteen".