4267390221 has 24 divisors (see below), whose sum is σ = 6230916120. Its totient is φ = 2814134400.

The previous prime is 4267390189. The next prime is 4267390229. The reversal of 4267390221 is 1220937624.

4267390221 is a `hidden beast` number, since 4 + 267 + 390 + 2 + 2 + 1 = 666.

4267390221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1031373225 + 3236016996 = 32115^2 + 56886^2 .

It is not a de Polignac number, because 4267390221 - 2⁵ = 4267390189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4267390229) 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 23 ways as a sum of consecutive naturals, for example, 645151 + ... + 651731.

It is an arithmetic number, because the mean of its divisors is an integer number (259621505).

Almost surely, 2^4267390221 is an apocalyptic number.

It is an amenable number.

4267390221 is a deficient number, since it is larger than the sum of its proper divisors (1963525899).

4267390221 is a wasteful number, since it uses less digits than its factorization.

4267390221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7357 (or 7354 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 4267390221 is about 65325.2647985448. The cubic root of 4267390221 is about 1622.0122103793.

The spelling of 4267390221 in words is "four billion, two hundred sixty-seven million, three hundred ninety thousand, two hundred twenty-one".