40556843 has 6 divisors (see below), whose sum is σ = 42397404. Its totient is φ = 38792996.

The previous prime is 40556839. The next prime is 40556891. The reversal of 40556843 is 34865504.

It is not a de Polignac number, because 40556843 - 2² = 40556839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40556743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37805 + ... + 38862.

It is an arithmetic number, because the mean of its divisors is an integer number (7066234).

Almost surely, 2^40556843 is an apocalyptic number.

40556843 is a deficient number, since it is larger than the sum of its proper divisors (1840561).

40556843 is an equidigital number, since it uses as much as digits as its factorization.

40556843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76713 (or 76690 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 40556843 is about 6368.4254725952. The cubic root of 40556843 is about 343.5748618359.

The spelling of 40556843 in words is "forty million, five hundred fifty-six thousand, eight hundred forty-three".