404000212342 has 4 divisors (see below), whose sum is σ = 606000318516. Its totient is φ = 202000106170.

The previous prime is 404000212337. The next prime is 404000212351. The reversal of 404000212342 is 243212000404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101000053084 + ... + 101000053087.

It is an arithmetic number, because the mean of its divisors is an integer number (151500079629).

Almost surely, 2^404000212342 is an apocalyptic number.

404000212342 is a deficient number, since it is larger than the sum of its proper divisors (202000106174).

404000212342 is a wasteful number, since it uses less digits than its factorization.

404000212342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202000106173.

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

Adding to 404000212342 its reverse (243212000404), we get a palindrome (647212212746).

The spelling of 404000212342 in words is "four hundred four billion, two hundred twelve thousand, three hundred forty-two".