4445380 has 12 divisors (see below), whose sum is σ = 9335340. Its totient is φ = 1778144.

The previous prime is 4445333. The next prime is 4445387. The reversal of 4445380 is 835444.

It can be written as a sum of positive squares in 2 ways, for example, as 3261636 + 1183744 = 1806^2 + 1088^2 .

It is a super-2 number, since 2×4445380² = 39522806688800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4445387) 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, 111115 + ... + 111154.

It is an arithmetic number, because the mean of its divisors is an integer number (777945).

Almost surely, 2^4445380 is an apocalyptic number.

It is an amenable number.

4445380 is an abundant number, since it is smaller than the sum of its proper divisors (4889960).

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

4445380 is a wasteful number, since it uses less digits than its factorization.

4445380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222278 (or 222276 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 4445380 is about 2108.4069815859. The cubic root of 4445380 is about 164.4256738714.

The spelling of 4445380 in words is "four million, four hundred forty-five thousand, three hundred eighty".