40930309 has 4 divisors (see below), whose sum is σ = 46777504. Its totient is φ = 35083116.

The previous prime is 40930289. The next prime is 40930321. The reversal of 40930309 is 90303904.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40930309 - 2⁵ = 40930277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40930709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2923587 + ... + 2923600.

It is an arithmetic number, because the mean of its divisors is an integer number (11694376).

Almost surely, 2^40930309 is an apocalyptic number.

It is an amenable number.

40930309 is a deficient number, since it is larger than the sum of its proper divisors (5847195).

40930309 is an equidigital number, since it uses as much as digits as its factorization.

40930309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5847194.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 40930309 is about 6397.6799701142. The cubic root of 40930309 is about 344.6262394900.

The spelling of 40930309 in words is "forty million, nine hundred thirty thousand, three hundred nine".