402200310042 has 12 divisors (see below), whose sum is σ = 871434005130. Its totient is φ = 134066770008.

The previous prime is 402200310041. The next prime is 402200310067. The reversal of 402200310042 is 240013002204.

It can be written as a sum of positive squares in only one way, i.e., 228293795601 + 173906514441 = 477801^2 + 417021^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 22344461669 = 402200310042 / (4 + 0 + 2 + 2 + 0 + 0 + 3 + 1 + 0 + 0 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 402200309997 and 402200310024.

It is not an unprimeable number, because it can be changed into a prime (402200310041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11172230817 + ... + 11172230852.

Almost surely, 2^402200310042 is an apocalyptic number.

402200310042 is an abundant number, since it is smaller than the sum of its proper divisors (469233695088).

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

402200310042 is a wasteful number, since it uses less digits than its factorization.

402200310042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22344461677 (or 22344461674 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 402200310042 its reverse (240013002204), we get a palindrome (642213312246).

The spelling of 402200310042 in words is "four hundred two billion, two hundred million, three hundred ten thousand, forty-two".