402213244242 has 64 divisors (see below), whose sum is σ = 874531491840. Its totient is φ = 122853931200.

The previous prime is 402213244193. The next prime is 402213244259. The reversal of 402213244242 is 242442312204.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7050192 + ... + 7107012.

It is an arithmetic number, because the mean of its divisors is an integer number (13664554560).

Almost surely, 2^402213244242 is an apocalyptic number.

402213244242 is an abundant number, since it is smaller than the sum of its proper divisors (472318247598).

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

402213244242 is a wasteful number, since it uses less digits than its factorization.

402213244242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58879.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 402213244242 its reverse (242442312204), we get a palindrome (644655556446).

The spelling of 402213244242 in words is "four hundred two billion, two hundred thirteen million, two hundred forty-four thousand, two hundred forty-two".