40298443 has 2 divisors, whose sum is σ = 40298444. Its totient is φ = 40298442.

The previous prime is 40298417. The next prime is 40298459. The reversal of 40298443 is 34489204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40298443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40298399 and 40298408.

It is not a weakly prime, because it can be changed into another prime (40298473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20149221 + 20149222.

It is an arithmetic number, because the mean of its divisors is an integer number (20149222).

Almost surely, 2^40298443 is an apocalyptic number.

40298443 is a deficient number, since it is larger than the sum of its proper divisors (1).

40298443 is an equidigital number, since it uses as much as digits as its factorization.

40298443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 40298443 is about 6348.1054654125. The cubic root of 40298443 is about 342.8436333053.

The spelling of 40298443 in words is "forty million, two hundred ninety-eight thousand, four hundred forty-three".