40499447 has 2 divisors, whose sum is σ = 40499448. Its totient is φ = 40499446.

The previous prime is 40499441. The next prime is 40499453. The reversal of 40499447 is 74499404.

It is a balanced prime because it is at equal distance from previous prime (40499441) and next prime (40499453).

It is a cyclic number.

It is not a de Polignac number, because 40499447 - 2¹⁴ = 40483063 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 (40499441) 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, 20249723 + 20249724.

It is an arithmetic number, because the mean of its divisors is an integer number (20249724).

Almost surely, 2^40499447 is an apocalyptic number.

40499447 is a deficient number, since it is larger than the sum of its proper divisors (1).

40499447 is an equidigital number, since it uses as much as digits as its factorization.

40499447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 40499447 is about 6363.9175827473. The cubic root of 40499447 is about 343.4127097293.

The spelling of 40499447 in words is "forty million, four hundred ninety-nine thousand, four hundred forty-seven".