4445140 has 24 divisors (see below), whose sum is σ = 10668672. Its totient is φ = 1524000.

The previous prime is 4445113. The next prime is 4445153. The reversal of 4445140 is 415444.

It is a plaindrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15736 + ... + 16015.

It is an arithmetic number, because the mean of its divisors is an integer number (444528).

Almost surely, 2^4445140 is an apocalyptic number.

It is an amenable number.

4445140 is an abundant number, since it is smaller than the sum of its proper divisors (6223532).

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

4445140 is a wasteful number, since it uses less digits than its factorization.

4445140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31767 (or 31765 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 4445140 is about 2108.3500658098. The cubic root of 4445140 is about 164.4227147789.

The spelling of 4445140 in words is "four million, four hundred forty-five thousand, one hundred forty".