409824013 has 4 divisors (see below), whose sum is σ = 419354848. Its totient is φ = 400293180.

The previous prime is 409824011. The next prime is 409824031. The reversal of 409824013 is 310428904.

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 409824013 - 2¹ = 409824011 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 (409824011) 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, 4765353 + ... + 4765438.

It is an arithmetic number, because the mean of its divisors is an integer number (104838712).

Almost surely, 2^409824013 is an apocalyptic number.

409824013 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

409824013 is a deficient number, since it is larger than the sum of its proper divisors (9530835).

409824013 is an equidigital number, since it uses as much as digits as its factorization.

409824013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9530834.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 409824013 is about 20244.1105756711. The cubic root of 409824013 is about 742.7895762353.

The spelling of 409824013 in words is "four hundred nine million, eight hundred twenty-four thousand, thirteen".