411942309 has 4 divisors (see below), whose sum is σ = 549256416. Its totient is φ = 274628204.

The previous prime is 411942299. The next prime is 411942313. The reversal of 411942309 is 903249114.

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 411942309 - 2⁹ = 411941797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 411942309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411942329) 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, 68657049 + ... + 68657054.

It is an arithmetic number, because the mean of its divisors is an integer number (137314104).

Almost surely, 2^411942309 is an apocalyptic number.

It is an amenable number.

411942309 is a deficient number, since it is larger than the sum of its proper divisors (137314107).

411942309 is a wasteful number, since it uses less digits than its factorization.

411942309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137314106.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 411942309 is about 20296.3619646478. The cubic root of 411942309 is about 744.0671530755.

The spelling of 411942309 in words is "four hundred eleven million, nine hundred forty-two thousand, three hundred nine".