40202947 has 2 divisors, whose sum is σ = 40202948. Its totient is φ = 40202946.

The previous prime is 40202941. The next prime is 40203029. The reversal of 40202947 is 74920204.

40202947 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 is a cyclic number.

It is not a de Polignac number, because 40202947 - 2⁷ = 40202819 is a prime.

It is not a weakly prime, because it can be changed into another prime (40202941) 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, 20101473 + 20101474.

It is an arithmetic number, because the mean of its divisors is an integer number (20101474).

Almost surely, 2^40202947 is an apocalyptic number.

40202947 is a deficient number, since it is larger than the sum of its proper divisors (1).

40202947 is an equidigital number, since it uses as much as digits as its factorization.

40202947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 40202947 is about 6340.5793899296. The cubic root of 40202947 is about 342.5726047084.

The spelling of 40202947 in words is "forty million, two hundred two thousand, nine hundred forty-seven".