4004056321 has 8 divisors (see below), whose sum is σ = 4015457280. Its totient is φ = 3992668992.

The previous prime is 4004056283. The next prime is 4004056373. The reversal of 4004056321 is 1236504004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4004056321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4004056921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894936 + ... + 899398.

It is an arithmetic number, because the mean of its divisors is an integer number (501932160).

Almost surely, 2^4004056321 is an apocalyptic number.

It is an amenable number.

4004056321 is a deficient number, since it is larger than the sum of its proper divisors (11400959).

4004056321 is a wasteful number, since it uses less digits than its factorization.

4004056321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6815.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 4004056321 is about 63277.6131107993. The cubic root of 4004056321 is about 1587.9374547091.

The spelling of 4004056321 in words is "four billion, four million, fifty-six thousand, three hundred twenty-one".