40918085 has 8 divisors (see below), whose sum is σ = 52878840. Its totient is φ = 30216384.

The previous prime is 40918079. The next prime is 40918103. The reversal of 40918085 is 58081904.

It can be written as a sum of positive squares in 4 ways, for example, as 1592644 + 39325441 = 1262^2 + 6271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40918085 - 2⁶ = 40918021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314690 + ... + 314819.

It is an arithmetic number, because the mean of its divisors is an integer number (6609855).

Almost surely, 2^40918085 is an apocalyptic number.

It is an amenable number.

40918085 is a deficient number, since it is larger than the sum of its proper divisors (11960755).

40918085 is a wasteful number, since it uses less digits than its factorization.

40918085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629527.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 40918085 is about 6396.7245524565. The cubic root of 40918085 is about 344.5919280738.

Adding to 40918085 its reverse (58081904), we get a palindrome (98999989).

The spelling of 40918085 in words is "forty million, nine hundred eighteen thousand, eighty-five".