4040355 has 32 divisors (see below), whose sum is σ = 7216128. Its totient is φ = 1913600.

The previous prime is 4040353. The next prime is 4040359. The reversal of 4040355 is 5530404.

4040355 = 418² + 419² + ... + 439².

It is a happy number.

It is not a de Polignac number, because 4040355 - 2¹ = 4040353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4040353) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 7495 + ... + 8015.

It is an arithmetic number, because the mean of its divisors is an integer number (225504).

Almost surely, 2^4040355 is an apocalyptic number.

4040355 is a deficient number, since it is larger than the sum of its proper divisors (3175773).

4040355 is a wasteful number, since it uses less digits than its factorization.

4040355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 4040355 is about 2010.0634318349. The cubic root of 4040355 is about 159.2721497121.

Adding to 4040355 its reverse (5530404), we get a palindrome (9570759).

The spelling of 4040355 in words is "four million, forty thousand, three hundred fifty-five".