40724227 has 2 divisors, whose sum is σ = 40724228. Its totient is φ = 40724226.

The previous prime is 40724171. The next prime is 40724261. The reversal of 40724227 is 72242704.

40724227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40724227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40724195 and 40724204.

It is not a weakly prime, because it can be changed into another prime (40724287) 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, 20362113 + 20362114.

It is an arithmetic number, because the mean of its divisors is an integer number (20362114).

Almost surely, 2^40724227 is an apocalyptic number.

40724227 is a deficient number, since it is larger than the sum of its proper divisors (1).

40724227 is an equidigital number, since it uses as much as digits as its factorization.

40724227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 40724227 is about 6381.5536509537. The cubic root of 40724227 is about 344.0468742462.

The spelling of 40724227 in words is "forty million, seven hundred twenty-four thousand, two hundred twenty-seven".