402440213442 has 32 divisors (see below), whose sum is σ = 824583723264. Its totient is φ = 130863427200.

The previous prime is 402440213419. The next prime is 402440213459. The reversal of 402440213442 is 244312044204.

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, 3019863 + ... + 3150309.

It is an arithmetic number, because the mean of its divisors is an integer number (25768241352).

Almost surely, 2^402440213442 is an apocalyptic number.

402440213442 is an abundant number, since it is smaller than the sum of its proper divisors (422143509822).

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

402440213442 is a wasteful number, since it uses less digits than its factorization.

402440213442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143034.

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

Adding to 402440213442 its reverse (244312044204), we get a palindrome (646752257646).

The spelling of 402440213442 in words is "four hundred two billion, four hundred forty million, two hundred thirteen thousand, four hundred forty-two".