4260387021 has 16 divisors (see below), whose sum is σ = 6284210688. Its totient is φ = 2545684400.

The previous prime is 4260386987. The next prime is 4260387029. The reversal of 4260387021 is 1207830624.

It is a cyclic number.

It is not a de Polignac number, because 4260387021 - 2¹⁷ = 4260255949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4260387029) 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 15 ways as a sum of consecutive naturals, for example, 906831 + ... + 911516.

It is an arithmetic number, because the mean of its divisors is an integer number (392763168).

Almost surely, 2^4260387021 is an apocalyptic number.

It is an amenable number.

4260387021 is a deficient number, since it is larger than the sum of its proper divisors (2023823667).

4260387021 is a wasteful number, since it uses less digits than its factorization.

4260387021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818432.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 4260387021 is about 65271.6402505713. The cubic root of 4260387021 is about 1621.1244315977.

The spelling of 4260387021 in words is "four billion, two hundred sixty million, three hundred eighty-seven thousand, twenty-one".