404480511 has 6 divisors (see below), whose sum is σ = 584249640. Its totient is φ = 269653668.

The previous prime is 404480501. The next prime is 404480537. The reversal of 404480511 is 115084404.

It is a happy number.

It is not a de Polignac number, because 404480511 - 2⁷ = 404480383 is a prime.

It is a super-3 number, since 3×404480511³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404480501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22471131 + ... + 22471148.

It is an arithmetic number, because the mean of its divisors is an integer number (97374940).

Almost surely, 2^404480511 is an apocalyptic number.

404480511 is a deficient number, since it is larger than the sum of its proper divisors (179769129).

404480511 is a wasteful number, since it uses less digits than its factorization.

404480511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44942285 (or 44942282 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 404480511 is about 20111.7008480138. The cubic root of 404480511 is about 739.5471486656.

The spelling of 404480511 in words is "four hundred four million, four hundred eighty thousand, five hundred eleven".