4452138 has 32 divisors (see below), whose sum is σ = 10238400. Its totient is φ = 1432368.

The previous prime is 4452131. The next prime is 4452139. The reversal of 4452138 is 8312544.

4452138 is a `hidden beast` number, since 445 + 213 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4452131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145 + ... + 2987.

It is an arithmetic number, because the mean of its divisors is an integer number (319950).

Almost surely, 2^4452138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4452138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5119200).

4452138 is an abundant number, since it is smaller than the sum of its proper divisors (5786262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4452138 is a wasteful number, since it uses less digits than its factorization.

4452138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883 (or 2877 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 4452138 is about 2110.0090047201. The cubic root of 4452138 is about 164.5089532979.

The spelling of 4452138 in words is "four million, four hundred fifty-two thousand, one hundred thirty-eight".