4284260721 has 32 divisors (see below), whose sum is σ = 6840462720. Its totient is φ = 2634472512.

The previous prime is 4284260711. The next prime is 4284260731. The reversal of 4284260721 is 1270624824.

4284260721 is a `hidden beast` number, since 4 + 2 + 8 + 42 + 607 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (4284260711) and next prime (4284260731).

It is not a de Polignac number, because 4284260721 - 2⁵ = 4284260689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4284260711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 556726 + ... + 564368.

It is an arithmetic number, because the mean of its divisors is an integer number (213764460).

Almost surely, 2^4284260721 is an apocalyptic number.

It is an amenable number.

4284260721 is a deficient number, since it is larger than the sum of its proper divisors (2556201999).

4284260721 is a wasteful number, since it uses less digits than its factorization.

4284260721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9262 (or 9256 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 4284260721 is about 65454.2643454191. The cubic root of 4284260721 is about 1624.1468621230.

The spelling of 4284260721 in words is "four billion, two hundred eighty-four million, two hundred sixty thousand, seven hundred twenty-one".