404021200342 has 16 divisors (see below), whose sum is σ = 606564261072. Its totient is φ = 201833169120.

The previous prime is 404021200339. The next prime is 404021200393. The reversal of 404021200342 is 243002120404.

It is a happy number.

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, 21021117 + ... + 21040327.

It is an arithmetic number, because the mean of its divisors is an integer number (37910266317).

Almost surely, 2^404021200342 is an apocalyptic number.

404021200342 is a deficient number, since it is larger than the sum of its proper divisors (202543060730).

404021200342 is a wasteful number, since it uses less digits than its factorization.

404021200342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27903.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 404021200342 its reverse (243002120404), we get a palindrome (647023320746).

The spelling of 404021200342 in words is "four hundred four billion, twenty-one million, two hundred thousand, three hundred forty-two".