40855243 has 12 divisors (see below), whose sum is σ = 48263688. Its totient is φ = 34282560.

The previous prime is 40855231. The next prime is 40855249. The reversal of 40855243 is 34255804.

It is not a de Polignac number, because 40855243 - 2⁵ = 40855211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40855249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9130 + ... + 12847.

It is an arithmetic number, because the mean of its divisors is an integer number (4021974).

Almost surely, 2^40855243 is an apocalyptic number.

40855243 is a deficient number, since it is larger than the sum of its proper divisors (7408445).

40855243 is a wasteful number, since it uses less digits than its factorization.

40855243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22014 (or 22001 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 40855243 is about 6391.8106198479. The cubic root of 40855243 is about 344.4154295789.

The spelling of 40855243 in words is "forty million, eight hundred fifty-five thousand, two hundred forty-three".