40843456 has 14 divisors (see below), whose sum is σ = 81048860. Its totient is φ = 20421696.

The previous prime is 40843447. The next prime is 40843457. The reversal of 40843456 is 65434804.

It is not an unprimeable number, because it can be changed into a prime (40843457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319026 + ... + 319153.

Almost surely, 2^40843456 is an apocalyptic number.

It is an amenable number.

40843456 is a deficient number, since it is larger than the sum of its proper divisors (40205404).

40843456 is an equidigital number, since it uses as much as digits as its factorization.

40843456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638191 (or 638181 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 40843456 is about 6390.8885141270. Note that the first 3 decimals coincide. The cubic root of 40843456 is about 344.3823043720.

The spelling of 40843456 in words is "forty million, eight hundred forty-three thousand, four hundred fifty-six".