404051285 has 32 divisors (see below), whose sum is σ = 546390144. Its totient is φ = 284256000.

The previous prime is 404051261. The next prime is 404051317. The reversal of 404051285 is 582150404.

It is not a de Polignac number, because 404051285 - 2¹⁶ = 403985749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 428915 + ... + 429855.

It is an arithmetic number, because the mean of its divisors is an integer number (17074692).

Almost surely, 2^404051285 is an apocalyptic number.

It is an amenable number.

404051285 is a deficient number, since it is larger than the sum of its proper divisors (142338859).

404051285 is a wasteful number, since it uses less digits than its factorization.

404051285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 404051285 is about 20101.0269638146. The cubic root of 404051285 is about 739.2854589127.

The spelling of 404051285 in words is "four hundred four million, fifty-one thousand, two hundred eighty-five".