404518061 has 4 divisors (see below), whose sum is σ = 410555712. Its totient is φ = 398480412.

The previous prime is 404518031. The next prime is 404518063. The reversal of 404518061 is 160815404.

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 404518061 - 2¹⁰ = 404517037 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 (404518063) 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, 3018725 + ... + 3018858.

It is an arithmetic number, because the mean of its divisors is an integer number (102638928).

Almost surely, 2^404518061 is an apocalyptic number.

It is an amenable number.

404518061 is a deficient number, since it is larger than the sum of its proper divisors (6037651).

404518061 is an equidigital number, since it uses as much as digits as its factorization.

404518061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6037650.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 404518061 is about 20112.6343625096. The cubic root of 404518061 is about 739.5700332755.

The spelling of 404518061 in words is "four hundred four million, five hundred eighteen thousand, sixty-one".