40267247 has 2 divisors, whose sum is σ = 40267248. Its totient is φ = 40267246.

The previous prime is 40267243. The next prime is 40267267. The reversal of 40267247 is 74276204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40267247 - 2² = 40267243 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40267243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20133623 + 20133624.

It is an arithmetic number, because the mean of its divisors is an integer number (20133624).

Almost surely, 2^40267247 is an apocalyptic number.

40267247 is a deficient number, since it is larger than the sum of its proper divisors (1).

40267247 is an equidigital number, since it uses as much as digits as its factorization.

40267247 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 40267247 is about 6345.6478786646. The cubic root of 40267247 is about 342.7551426159.

The spelling of 40267247 in words is "forty million, two hundred sixty-seven thousand, two hundred forty-seven".