404021023103204 has 24 divisors (see below), whose sum is σ = 761425714487928. Its totient is φ = 186470879316480.

The previous prime is 404021023103183. The next prime is 404021023103209. The reversal of 404021023103204 is 402301320120404.

It can be written as a sum of positive squares in 4 ways, for example, as 9362669783104 + 394658353320100 = 3059848^2 + 19866010^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (404021023103209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20482364 + ... + 35036684.

It is an arithmetic number, because the mean of its divisors is an integer number (31726071436997).

Almost surely, 2^{404021023103204} is an apocalyptic number.

It is an amenable number.

404021023103204 is a deficient number, since it is larger than the sum of its proper divisors (357404691384724).

404021023103204 is a wasteful number, since it uses less digits than its factorization.

404021023103204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15088175 (or 15088173 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 404021023103204 its reverse (402301320120404), we get a palindrome (806322343223608).

The spelling of 404021023103204 in words is "four hundred four trillion, twenty-one billion, twenty-three million, one hundred three thousand, two hundred four".