4004423135 has 4 divisors (see below), whose sum is σ = 4805307768. Its totient is φ = 3203538504.

The previous prime is 4004423131. The next prime is 4004423173. The reversal of 4004423135 is 5313244004.

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

It is a cyclic number.

It is not a de Polignac number, because 4004423135 - 2² = 4004423131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004423131) 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, 400442309 + ... + 400442318.

It is an arithmetic number, because the mean of its divisors is an integer number (1201326942).

Almost surely, 2^4004423135 is an apocalyptic number.

4004423135 is a deficient number, since it is larger than the sum of its proper divisors (800884633).

4004423135 is an equidigital number, since it uses as much as digits as its factorization.

4004423135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800884632.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 4004423135 is about 63280.5114944562. The cubic root of 4004423135 is about 1587.9859438625.

Adding to 4004423135 its reverse (5313244004), we get a palindrome (9317667139).

The spelling of 4004423135 in words is "four billion, four million, four hundred twenty-three thousand, one hundred thirty-five".