4289227605 has 54 divisors (see below), whose sum is σ = 8061284322. Its totient is φ = 2108808000.

The previous prime is 4289227589. The next prime is 4289227609. The reversal of 4289227605 is 5067229824.

It can be written as a sum of positive squares in 3 ways, for example, as 20304036 + 4268923569 = 4506^2 + 65337^2 .

It is not a de Polignac number, because 4289227605 - 2⁴ = 4289227589 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4289227609) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 5710980 + ... + 5711730.

It is an arithmetic number, because the mean of its divisors is an integer number (149283043).

Almost surely, 2^4289227605 is an apocalyptic number.

4289227605 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4289227605 is a deficient number, since it is larger than the sum of its proper divisors (3772056717).

4289227605 is an equidigital number, since it uses as much as digits as its factorization.

4289227605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 4289227605 is about 65492.1949929913. The cubic root of 4289227605 is about 1624.7742619762.

Multiplying 4289227605 by its sum of digits (45), we get a square (193015242225 = 439335²).

4289227605 divided by its sum of digits (45) gives a square (95316169 = 9763²).

The spelling of 4289227605 in words is "four billion, two hundred eighty-nine million, two hundred twenty-seven thousand, six hundred five".