404000355 has 32 divisors (see below), whose sum is σ = 706579200. Its totient is φ = 195486080.

The previous prime is 404000341. The next prime is 404000357. The reversal of 404000355 is 553000404.

It is a happy number.

It is not a de Polignac number, because 404000355 - 2²⁰ = 402951779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404000357) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90721 + ... + 95069.

It is an arithmetic number, because the mean of its divisors is an integer number (22080600).

Almost surely, 2^404000355 is an apocalyptic number.

404000355 is a deficient number, since it is larger than the sum of its proper divisors (302578845).

404000355 is a wasteful number, since it uses less digits than its factorization.

404000355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4931.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 404000355 is about 20099.7600731949. The cubic root of 404000355 is about 739.2543957020.

Adding to 404000355 its reverse (553000404), we get a palindrome (957000759).

The spelling of 404000355 in words is "four hundred four million, three hundred fifty-five", and thus it is an aban number.