40281599 has 2 divisors, whose sum is σ = 40281600. Its totient is φ = 40281598.

The previous prime is 40281589. The next prime is 40281607. The reversal of 40281599 is 99518204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40281599 is a prime.

It is a Sophie Germain 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 (40281509) 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, 20140799 + 20140800.

It is an arithmetic number, because the mean of its divisors is an integer number (20140800).

Almost surely, 2^40281599 is an apocalyptic number.

40281599 is a deficient number, since it is larger than the sum of its proper divisors (1).

40281599 is an equidigital number, since it uses as much as digits as its factorization.

40281599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 40281599 is about 6346.7786317155. The cubic root of 40281599 is about 342.7958592268.

The spelling of 40281599 in words is "forty million, two hundred eighty-one thousand, five hundred ninety-nine".