404040042102 has 16 divisors (see below), whose sum is σ = 808145807040. Its totient is φ = 134669060232.

The previous prime is 404040042089. The next prime is 404040042139. The reversal of 404040042102 is 201240040404.

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, 2658352 + ... + 2806227.

It is an arithmetic number, because the mean of its divisors is an integer number (50509112940).

Almost surely, 2^404040042102 is an apocalyptic number.

404040042102 is an abundant number, since it is smaller than the sum of its proper divisors (404105764938).

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

404040042102 is a wasteful number, since it uses less digits than its factorization.

404040042102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5476907.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 404040042102 its reverse (201240040404), we get a palindrome (605280082506).

The spelling of 404040042102 in words is "four hundred four billion, forty million, forty-two thousand, one hundred two".