4445748 has 18 divisors (see below), whose sum is σ = 11237954. Its totient is φ = 1481904.

The previous prime is 4445737. The next prime is 4445767. The reversal of 4445748 is 8475444.

It can be written as a sum of positive squares in only one way, i.e., 3305124 + 1140624 = 1818^2 + 1068^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 123493 = 4445748 / (4 + 4 + 4 + 5 + 7 + 4 + 8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61711 + ... + 61782.

Almost surely, 2^4445748 is an apocalyptic number.

It is an amenable number.

4445748 is an abundant number, since it is smaller than the sum of its proper divisors (6792206).

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

4445748 is a wasteful number, since it uses less digits than its factorization.

4445748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123503 (or 123498 counting only the distinct ones).

The product of its digits is 71680, while the sum is 36.

The square root of 4445748 is about 2108.4942494586. The cubic root of 4445748 is about 164.4302109397.

The spelling of 4445748 in words is "four million, four hundred forty-five thousand, seven hundred forty-eight".