4002133409 has 4 divisors (see below), whose sum is σ = 4002305604. Its totient is φ = 4001961216.

The previous prime is 4002133393. The next prime is 4002133411. The reversal of 4002133409 is 9043312004.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41319184 + 3960814225 = 6428^2 + 62935^2 .

It is a cyclic number.

It is not a de Polignac number, because 4002133409 - 2⁴ = 4002133393 is a prime.

It is a super-2 number, since 2×4002133409² = 32034143646867922562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4002133459) 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, 44552 + ... + 99945.

It is an arithmetic number, because the mean of its divisors is an integer number (1000576401).

Almost surely, 2^4002133409 is an apocalyptic number.

It is an amenable number.

4002133409 is a deficient number, since it is larger than the sum of its proper divisors (172195).

4002133409 is a wasteful number, since it uses less digits than its factorization.

4002133409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172194.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 4002133409 is about 63262.4170341286. The cubic root of 4002133409 is about 1587.6832164507.

The spelling of 4002133409 in words is "four billion, two million, one hundred thirty-three thousand, four hundred nine".