40255443 has 6 divisors (see below), whose sum is σ = 58146764. Its totient is φ = 26836956.

The previous prime is 40255429. The next prime is 40255447. The reversal of 40255443 is 34455204.

It is not a de Polignac number, because 40255443 - 2⁶ = 40255379 is a prime.

It is a super-2 number, since 2×40255443² = 3241001382252498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40255447) 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, 2236405 + ... + 2236422.

Almost surely, 2^40255443 is an apocalyptic number.

40255443 is a deficient number, since it is larger than the sum of its proper divisors (17891321).

40255443 is a wasteful number, since it uses less digits than its factorization.

40255443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472833 (or 4472830 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 40255443 is about 6344.7177242175. The cubic root of 40255443 is about 342.7216474272.

The spelling of 40255443 in words is "forty million, two hundred fifty-five thousand, four hundred forty-three".