4042636 has 12 divisors (see below), whose sum is σ = 7618912. Its totient is φ = 1865808.

The previous prime is 4042631. The next prime is 4042639. The reversal of 4042636 is 6362404.

It is a self number, because there is not a number n which added to its sum of digits gives 4042636.

It is not an unprimeable number, because it can be changed into a prime (4042631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38820 + ... + 38923.

Almost surely, 2^4042636 is an apocalyptic number.

It is an amenable number.

4042636 is a deficient number, since it is larger than the sum of its proper divisors (3576276).

4042636 is a wasteful number, since it uses less digits than its factorization.

4042636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77760 (or 77758 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 4042636 is about 2010.6307468056. The cubic root of 4042636 is about 159.3021166686.

The spelling of 4042636 in words is "four million, forty-two thousand, six hundred thirty-six".