40555243 has 8 divisors (see below), whose sum is σ = 41348160. Its totient is φ = 39765960.

The previous prime is 40555241. The next prime is 40555289. The reversal of 40555243 is 34255504.

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 40555243 - 2¹ = 40555241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40555241) 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, 34048 + ... + 35218.

It is an arithmetic number, because the mean of its divisors is an integer number (5168520).

Almost surely, 2^40555243 is an apocalyptic number.

40555243 is a deficient number, since it is larger than the sum of its proper divisors (792917).

40555243 is a wasteful number, since it uses less digits than its factorization.

40555243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 40555243 is about 6368.2998516087. The cubic root of 40555243 is about 343.5703436751.

The spelling of 40555243 in words is "forty million, five hundred fifty-five thousand, two hundred forty-three".