4140440 has 16 divisors (see below), whose sum is σ = 9316080. Its totient is φ = 1656160.

The previous prime is 4140439. The next prime is 4140457. The reversal of 4140440 is 440414.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51716 + ... + 51795.

It is an arithmetic number, because the mean of its divisors is an integer number (582255).

Almost surely, 2^4140440 is an apocalyptic number.

4140440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4140440 is an abundant number, since it is smaller than the sum of its proper divisors (5175640).

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

4140440 is a wasteful number, since it uses less digits than its factorization.

4140440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103522 (or 103518 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 4140440 is about 2034.8071161661. The cubic root of 4140440 is about 160.5765656629.

Adding to 4140440 its reverse (440414), we get a palindrome (4580854).

The spelling of 4140440 in words is "four million, one hundred forty thousand, four hundred forty".