40355 has 8 divisors (see below), whose sum is σ = 55392. Its totient is φ = 27648.

The previous prime is 40351. The next prime is 40357. The reversal of 40355 is 55304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40355 - 2² = 40351 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 40355.

It is not an unprimeable number, because it can be changed into a prime (40351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542 + ... + 611.

It is an arithmetic number, because the mean of its divisors is an integer number (6924).

2⁴⁰³⁵⁵ is an apocalyptic number.

40355 is a deficient number, since it is larger than the sum of its proper divisors (15037).

40355 is a wasteful number, since it uses less digits than its factorization.

40355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 40355 is about 200.8855395493. The cubic root of 40355 is about 34.3003946723.

Adding to 40355 its reverse (55304), we get a palindrome (95659).

The spelling of 40355 in words is "forty thousand, three hundred fifty-five".