4445720 has 16 divisors (see below), whose sum is σ = 10002960. Its totient is φ = 1778272.

The previous prime is 4445719. The next prime is 4445723. The reversal of 4445720 is 275444.

4445720 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 4445720.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55532 + ... + 55611.

It is an arithmetic number, because the mean of its divisors is an integer number (625185).

Almost surely, 2^4445720 is an apocalyptic number.

4445720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4445720 is an abundant number, since it is smaller than the sum of its proper divisors (5557240).

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

4445720 is a wasteful number, since it uses less digits than its factorization.

4445720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111154 (or 111150 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 4445720 is about 2108.4876096387. The cubic root of 4445720 is about 164.4298657368.

The spelling of 4445720 in words is "four million, four hundred forty-five thousand, seven hundred twenty".