40905211 has 2 divisors, whose sum is σ = 40905212. Its totient is φ = 40905210.

The previous prime is 40905203. The next prime is 40905217. The reversal of 40905211 is 11250904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40905211 - 2³ = 40905203 is a prime.

It is not a weakly prime, because it can be changed into another prime (40905217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20452605 + 20452606.

It is an arithmetic number, because the mean of its divisors is an integer number (20452606).

Almost surely, 2^40905211 is an apocalyptic number.

40905211 is a deficient number, since it is larger than the sum of its proper divisors (1).

40905211 is an equidigital number, since it uses as much as digits as its factorization.

40905211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 40905211 is about 6395.7181770306. The cubic root of 40905211 is about 344.5557847905. Note that the first 3 decimals are identical.

The spelling of 40905211 in words is "forty million, nine hundred five thousand, two hundred eleven".