4042434636 has 18 divisors (see below), whose sum is σ = 10218376532. Its totient is φ = 1347478200.

The previous prime is 4042434611. The next prime is 4042434653. The reversal of 4042434636 is 6364342404.

4042434636 is a `hidden beast` number, since 404 + 243 + 4 + 6 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 112289851 = 4042434636 / (4 + 0 + 4 + 2 + 4 + 3 + 4 + 6 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 4042434636.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56144890 + ... + 56144961.

Almost surely, 2^4042434636 is an apocalyptic number.

It is an amenable number.

4042434636 is an abundant number, since it is smaller than the sum of its proper divisors (6175941896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4042434636 is a wasteful number, since it uses less digits than its factorization.

4042434636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112289861 (or 112289856 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

The square root of 4042434636 is about 63580.1434097156. The cubic root of 4042434636 is about 1592.9947167459.

The spelling of 4042434636 in words is "four billion, forty-two million, four hundred thirty-four thousand, six hundred thirty-six".