404040206004 has 24 divisors (see below), whose sum is σ = 943958419488. Its totient is φ = 134508934560.

The previous prime is 404040205999. The next prime is 404040206033. The reversal of 404040206004 is 400602040404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21381927 + ... + 21400814.

It is an arithmetic number, because the mean of its divisors is an integer number (39331600812).

Almost surely, 2^404040206004 is an apocalyptic number.

It is an amenable number.

404040206004 is an abundant number, since it is smaller than the sum of its proper divisors (539918213484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404040206004 is a wasteful number, since it uses less digits than its factorization.

404040206004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42783535 (or 42783533 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 404040206004 its reverse (400602040404), we get a palindrome (804642246408).

The spelling of 404040206004 in words is "four hundred four billion, forty million, two hundred six thousand, four".