40994905 has 16 divisors (see below), whose sum is σ = 59529600. Its totient is φ = 26456832.

The previous prime is 40994887. The next prime is 40994909. The reversal of 40994905 is 50949904.

It is a cyclic number.

It is not a de Polignac number, because 40994905 - 2¹⁷ = 40863833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40994909) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 33855 + ... + 35044.

It is an arithmetic number, because the mean of its divisors is an integer number (3720600).

Almost surely, 2^40994905 is an apocalyptic number.

It is an amenable number.

40994905 is a deficient number, since it is larger than the sum of its proper divisors (18534695).

40994905 is a wasteful number, since it uses less digits than its factorization.

40994905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68928.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 40994905 is about 6402.7263724136. The cubic root of 40994905 is about 344.8074399776.

The spelling of 40994905 in words is "forty million, nine hundred ninety-four thousand, nine hundred five".