404021441402 has 16 divisors (see below), whose sum is σ = 610227189000. Its totient is φ = 200612946240.

The previous prime is 404021441401. The next prime is 404021441437. The reversal of 404021441402 is 204144120404.

It can be written as a sum of positive squares in 4 ways, for example, as 356121304081 + 47900137321 = 596759^2 + 218861^2 .

It is a super-2 number, since 2×404021441402² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (404021441401) 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, 1309124 + ... + 1588032.

Almost surely, 2^404021441402 is an apocalyptic number.

404021441402 is a deficient number, since it is larger than the sum of its proper divisors (206205747598).

404021441402 is a wasteful number, since it uses less digits than its factorization.

404021441402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283921.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 404021441402 its reverse (204144120404), we get a palindrome (608165561806).

The spelling of 404021441402 in words is "four hundred four billion, twenty-one million, four hundred forty-one thousand, four hundred two".