404116513 has 4 divisors (see below), whose sum is σ = 404190000. Its totient is φ = 404043028.

The previous prime is 404116511. The next prime is 404116543. The reversal of 404116513 is 315611404.

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 404116513 - 2¹ = 404116511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404116511) 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, 27763 + ... + 39736.

It is an arithmetic number, because the mean of its divisors is an integer number (101047500).

Almost surely, 2^404116513 is an apocalyptic number.

It is an amenable number.

404116513 is a deficient number, since it is larger than the sum of its proper divisors (73487).

404116513 is an equidigital number, since it uses as much as digits as its factorization.

404116513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73486.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 404116513 is about 20102.6494025041. The cubic root of 404116513 is about 739.3252389431.

Adding to 404116513 its reverse (315611404), we get a palindrome (719727917).

The spelling of 404116513 in words is "four hundred four million, one hundred sixteen thousand, five hundred thirteen".