404492055 has 16 divisors (see below), whose sum is σ = 706022784. Its totient is φ = 196117280.

The previous prime is 404492027. The next prime is 404492057. The reversal of 404492055 is 550294404.

It is not a de Polignac number, because 404492055 - 2⁶ = 404491991 is a prime.

It is a super-2 number, since 2×404492055² = 327227645116246050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404492057) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1225569 + ... + 1225898.

It is an arithmetic number, because the mean of its divisors is an integer number (44126424).

Almost surely, 2^404492055 is an apocalyptic number.

404492055 is a deficient number, since it is larger than the sum of its proper divisors (301530729).

404492055 is a wasteful number, since it uses less digits than its factorization.

404492055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451486.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 404492055 is about 20111.9878430751. The cubic root of 404492055 is about 739.5541842341.

The spelling of 404492055 in words is "four hundred four million, four hundred ninety-two thousand, fifty-five".