402212030242 has 16 divisors (see below), whose sum is σ = 658233362592. Its totient is φ = 182804699520.

The previous prime is 402212030239. The next prime is 402212030249. The reversal of 402212030242 is 242030212204.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (402212030249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729348 + ... + 1156015.

It is an arithmetic number, because the mean of its divisors is an integer number (41139585162).

Almost surely, 2^402212030242 is an apocalyptic number.

402212030242 is a deficient number, since it is larger than the sum of its proper divisors (256021332350).

402212030242 is a wasteful number, since it uses less digits than its factorization.

402212030242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895073.

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

Adding to 402212030242 its reverse (242030212204), we get a palindrome (644242242446).

The spelling of 402212030242 in words is "four hundred two billion, two hundred twelve million, thirty thousand, two hundred forty-two".