4042394999 has 4 divisors (see below), whose sum is σ = 4181787960. Its totient is φ = 3903002040.

The previous prime is 4042394957. The next prime is 4042395001. The reversal of 4042394999 is 9994932404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4042394999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4042394999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042384999) 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, 69696437 + ... + 69696494.

It is an arithmetic number, because the mean of its divisors is an integer number (1045446990).

Almost surely, 2^4042394999 is an apocalyptic number.

4042394999 is a deficient number, since it is larger than the sum of its proper divisors (139392961).

4042394999 is a wasteful number, since it uses less digits than its factorization.

4042394999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139392960.

The product of its (nonzero) digits is 2519424, while the sum is 53.

The square root of 4042394999 is about 63579.8316999974. The cubic root of 4042394999 is about 1592.9895101692.

The spelling of 4042394999 in words is "four billion, forty-two million, three hundred ninety-four thousand, nine hundred ninety-nine".