4040555321 has 8 divisors (see below), whose sum is σ = 4410366624. Its totient is φ = 3671158720.

The previous prime is 4040555317. The next prime is 4040555341. The reversal of 4040555321 is 1235550404.

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

It is a cyclic number.

It is not a de Polignac number, because 4040555321 - 2² = 4040555317 is a prime.

It is a super-2 number, since 2×4040555321² = 32652174604122826082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4040555341) 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, 83120 + ... + 122433.

It is an arithmetic number, because the mean of its divisors is an integer number (551295828).

Almost surely, 2^4040555321 is an apocalyptic number.

It is an amenable number.

4040555321 is a deficient number, since it is larger than the sum of its proper divisors (369811303).

4040555321 is a wasteful number, since it uses less digits than its factorization.

4040555321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207351.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 4040555321 is about 63565.3625884412. The cubic root of 4040555321 is about 1592.7478190896.

The spelling of 4040555321 in words is "four billion, forty million, five hundred fifty-five thousand, three hundred twenty-one".