40999351 has 2 divisors, whose sum is σ = 40999352. Its totient is φ = 40999350.

The previous prime is 40999327. The next prime is 40999403. The reversal of 40999351 is 15399904.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40999351 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 (40999951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20499675 + 20499676.

It is an arithmetic number, because the mean of its divisors is an integer number (20499676).

Almost surely, 2^40999351 is an apocalyptic number.

40999351 is a deficient number, since it is larger than the sum of its proper divisors (1).

40999351 is an equidigital number, since it uses as much as digits as its factorization.

40999351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 40999351 is about 6403.0735588466. The cubic root of 40999351 is about 344.8199046035.

The spelling of 40999351 in words is "forty million, nine hundred ninety-nine thousand, three hundred fifty-one".