40197233 has 2 divisors, whose sum is σ = 40197234. Its totient is φ = 40197232.

The previous prime is 40197229. The next prime is 40197239. The reversal of 40197233 is 33279104.

40197233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37662769 + 2534464 = 6137^2 + 1592^2 .

It is a cyclic number.

It is not a de Polignac number, because 40197233 - 2² = 40197229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40197196 and 40197205.

It is not a weakly prime, because it can be changed into another prime (40197239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20098616 + 20098617.

It is an arithmetic number, because the mean of its divisors is an integer number (20098617).

Almost surely, 2^40197233 is an apocalyptic number.

It is an amenable number.

40197233 is a deficient number, since it is larger than the sum of its proper divisors (1).

40197233 is an equidigital number, since it uses as much as digits as its factorization.

40197233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 40197233 is about 6340.1287841810. The cubic root of 40197233 is about 342.5563741187.

The spelling of 40197233 in words is "forty million, one hundred ninety-seven thousand, two hundred thirty-three".