40247267 has 2 divisors, whose sum is σ = 40247268. Its totient is φ = 40247266.

The previous prime is 40247257. The next prime is 40247287. The reversal of 40247267 is 76274204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40247267 - 2¹² = 40243171 is a prime.

It is not a weakly prime, because it can be changed into another prime (40247237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20123633 + 20123634.

It is an arithmetic number, because the mean of its divisors is an integer number (20123634).

Almost surely, 2^40247267 is an apocalyptic number.

40247267 is a deficient number, since it is larger than the sum of its proper divisors (1).

40247267 is an equidigital number, since it uses as much as digits as its factorization.

40247267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 40247267 is about 6344.0733759943. The cubic root of 40247267 is about 342.6984432614.

The spelling of 40247267 in words is "forty million, two hundred forty-seven thousand, two hundred sixty-seven".