4128365 has 12 divisors (see below), whose sum is σ = 5264436. Its totient is φ = 3107328.

The previous prime is 4128361. The next prime is 4128367. The reversal of 4128365 is 5638214.

It can be written as a sum of positive squares in 6 ways, for example, as 391876 + 3736489 = 626^2 + 1933^2 .

It is not a de Polignac number, because 4128365 - 2² = 4128361 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17 + ... + 2873.

It is an arithmetic number, because the mean of its divisors is an integer number (438703).

Almost surely, 2^4128365 is an apocalyptic number.

It is an amenable number.

4128365 is a deficient number, since it is larger than the sum of its proper divisors (1136071).

4128365 is a wasteful number, since it uses less digits than its factorization.

4128365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896 (or 2879 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 4128365 is about 2031.8378380176. The cubic root of 4128365 is about 160.4203141541.

The spelling of 4128365 in words is "four million, one hundred twenty-eight thousand, three hundred sixty-five".