40885399 has 2 divisors, whose sum is σ = 40885400. Its totient is φ = 40885398.

The previous prime is 40885381. The next prime is 40885417. The reversal of 40885399 is 99358804.

It is a balanced prime because it is at equal distance from previous prime (40885381) and next prime (40885417).

It is a cyclic number.

It is not a de Polignac number, because 40885399 - 2¹⁷ = 40754327 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 (40885319) 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, 20442699 + 20442700.

It is an arithmetic number, because the mean of its divisors is an integer number (20442700).

Almost surely, 2^40885399 is an apocalyptic number.

40885399 is a deficient number, since it is larger than the sum of its proper divisors (1).

40885399 is an equidigital number, since it uses as much as digits as its factorization.

40885399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 40885399 is about 6394.1691407094. The cubic root of 40885399 is about 344.5001485082.

The spelling of 40885399 in words is "forty million, eight hundred eighty-five thousand, three hundred ninety-nine".