405485484 has 12 divisors (see below), whose sum is σ = 946132824. Its totient is φ = 135161824.

The previous prime is 405485459. The next prime is 405485501. The reversal of 405485484 is 484584504.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16895217 + ... + 16895240.

It is an arithmetic number, because the mean of its divisors is an integer number (78844402).

Almost surely, 2^405485484 is an apocalyptic number.

It is an amenable number.

405485484 is an abundant number, since it is smaller than the sum of its proper divisors (540647340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

405485484 is a wasteful number, since it uses less digits than its factorization.

405485484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33790464 (or 33790462 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 42.

The square root of 405485484 is about 20136.6701318763. The cubic root of 405485484 is about 740.1591354860.

The spelling of 405485484 in words is "four hundred five million, four hundred eighty-five thousand, four hundred eighty-four".