40940903 has 2 divisors, whose sum is σ = 40940904. Its totient is φ = 40940902.

The previous prime is 40940891. The next prime is 40940929. The reversal of 40940903 is 30904904.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40940903 - 2¹² = 40936807 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 (40945903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20470451 + 20470452.

It is an arithmetic number, because the mean of its divisors is an integer number (20470452).

Almost surely, 2^40940903 is an apocalyptic number.

40940903 is a deficient number, since it is larger than the sum of its proper divisors (1).

40940903 is an equidigital number, since it uses as much as digits as its factorization.

40940903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 40940903 is about 6398.5078729341. The cubic root of 40940903 is about 344.6559701511.

The spelling of 40940903 in words is "forty million, nine hundred forty thousand, nine hundred three".