402144411242 has 32 divisors (see below), whose sum is σ = 695328036480. Its totient is φ = 170866483200.

The previous prime is 402144411139. The next prime is 402144411257. The reversal of 402144411242 is 242114441204.

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, 1338617 + ... + 1611267.

It is an arithmetic number, because the mean of its divisors is an integer number (21729001140).

Almost surely, 2^402144411242 is an apocalyptic number.

402144411242 is a deficient number, since it is larger than the sum of its proper divisors (293183625238).

402144411242 is a wasteful number, since it uses less digits than its factorization.

402144411242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273566.

The product of its (nonzero) digits is 8192, while the sum is 29.

Adding to 402144411242 its reverse (242114441204), we get a palindrome (644258852446).

The spelling of 402144411242 in words is "four hundred two billion, one hundred forty-four million, four hundred eleven thousand, two hundred forty-two".