40800443 has 2 divisors, whose sum is σ = 40800444. Its totient is φ = 40800442.

The previous prime is 40800427. The next prime is 40800451. The reversal of 40800443 is 34400804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40800443 - 2⁴ = 40800427 is a prime.

It is a super-2 number, since 2×40800443² = 3329352297992498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40800143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20400221 + 20400222.

It is an arithmetic number, because the mean of its divisors is an integer number (20400222).

Almost surely, 2^40800443 is an apocalyptic number.

40800443 is a deficient number, since it is larger than the sum of its proper divisors (1).

40800443 is an equidigital number, since it uses as much as digits as its factorization.

40800443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 40800443 is about 6387.5224461445. The cubic root of 40800443 is about 344.2613701149.

The spelling of 40800443 in words is "forty million, eight hundred thousand, four hundred forty-three".