404206055 has 16 divisors (see below), whose sum is σ = 546213888. Its totient is φ = 284484000.

The previous prime is 404206051. The next prime is 404206079. The reversal of 404206055 is 550602404.

It is not a de Polignac number, because 404206055 - 2² = 404206051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404206051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116831 + ... + 120240.

It is an arithmetic number, because the mean of its divisors is an integer number (34138368).

Almost surely, 2^404206055 is an apocalyptic number.

404206055 is a deficient number, since it is larger than the sum of its proper divisors (142007833).

404206055 is a wasteful number, since it uses less digits than its factorization.

404206055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237118.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 404206055 is about 20104.8763985258. The cubic root of 404206055 is about 739.3798401695.

Adding to 404206055 its reverse (550602404), we get a palindrome (954808459).

The spelling of 404206055 in words is "four hundred four million, two hundred six thousand, fifty-five".