400042435602 has 32 divisors (see below), whose sum is σ = 836854358400. Its totient is φ = 127246775040.

The previous prime is 400042435561. The next prime is 400042435631. The reversal of 400042435602 is 206534240004.

It is a self number, because there is not a number n which added to its sum of digits gives 400042435602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3384727 + ... + 3500922.

It is an arithmetic number, because the mean of its divisors is an integer number (26151698700).

Almost surely, 2^400042435602 is an apocalyptic number.

400042435602 is an abundant number, since it is smaller than the sum of its proper divisors (436811922798).

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

400042435602 is a wasteful number, since it uses less digits than its factorization.

400042435602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6886098.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 400042435602 its reverse (206534240004), we get a palindrome (606576675606).

The spelling of 400042435602 in words is "four hundred billion, forty-two million, four hundred thirty-five thousand, six hundred two".