40418767 has 2 divisors, whose sum is σ = 40418768. Its totient is φ = 40418766.

The previous prime is 40418633. The next prime is 40418771. The reversal of 40418767 is 76781404.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40418767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40412767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20209383 + 20209384.

It is an arithmetic number, because the mean of its divisors is an integer number (20209384).

Almost surely, 2^40418767 is an apocalyptic number.

40418767 is a deficient number, since it is larger than the sum of its proper divisors (1).

40418767 is an equidigital number, since it uses as much as digits as its factorization.

40418767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 40418767 is about 6357.5755599128. The cubic root of 40418767 is about 343.1845176743.

The spelling of 40418767 in words is "forty million, four hundred eighteen thousand, seven hundred sixty-seven".