40930209 has 12 divisors (see below), whose sum is σ = 59195136. Its totient is φ = 27252792.

The previous prime is 40930187. The next prime is 40930229. The reversal of 40930209 is 90203904.

It is not a de Polignac number, because 40930209 - 2⁷ = 40930081 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40930229) 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 11 ways as a sum of consecutive naturals, for example, 6352 + ... + 11054.

It is an arithmetic number, because the mean of its divisors is an integer number (4932928).

Almost surely, 2^40930209 is an apocalyptic number.

It is an amenable number.

40930209 is a deficient number, since it is larger than the sum of its proper divisors (18264927).

40930209 is a wasteful number, since it uses less digits than its factorization.

40930209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5676 (or 5673 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 40930209 is about 6397.6721547763. The cubic root of 40930209 is about 344.6259588288.

The spelling of 40930209 in words is "forty million, nine hundred thirty thousand, two hundred nine".