40242407 has 2 divisors, whose sum is σ = 40242408. Its totient is φ = 40242406.

The previous prime is 40242403. The next prime is 40242427. The reversal of 40242407 is 70424204.

40242407 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 40242407 - 2² = 40242403 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40242403) 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, 20121203 + 20121204.

It is an arithmetic number, because the mean of its divisors is an integer number (20121204).

Almost surely, 2^40242407 is an apocalyptic number.

40242407 is a deficient number, since it is larger than the sum of its proper divisors (1).

40242407 is an equidigital number, since it uses as much as digits as its factorization.

40242407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 40242407 is about 6343.6903297686. The cubic root of 40242407 is about 342.6846486894.

The spelling of 40242407 in words is "forty million, two hundred forty-two thousand, four hundred seven".