4445724 has 12 divisors (see below), whose sum is σ = 10373384. Its totient is φ = 1481904.

The previous prime is 4445723. The next prime is 4445737. The reversal of 4445724 is 4275444.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 4445691 and 4445700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4445723) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 185227 + ... + 185250.

Almost surely, 2^4445724 is an apocalyptic number.

It is an amenable number.

4445724 is an abundant number, since it is smaller than the sum of its proper divisors (5927660).

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

4445724 is a wasteful number, since it uses less digits than its factorization.

4445724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370484 (or 370482 counting only the distinct ones).

The product of its digits is 17920, while the sum is 30.

The square root of 4445724 is about 2108.4885581857. The cubic root of 4445724 is about 164.4299150516.

Adding to 4445724 its product of digits (17920), we get a palindrome (4463644).

The spelling of 4445724 in words is "four million, four hundred forty-five thousand, seven hundred twenty-four".