402263622444 has 48 divisors (see below), whose sum is σ = 950358189312. Its totient is φ = 132411771072.

The previous prime is 402263622437. The next prime is 402263622463. The reversal of 402263622444 is 444226362204.

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, 2112897 + ... + 2295399.

It is an arithmetic number, because the mean of its divisors is an integer number (19799128944).

Almost surely, 2^402263622444 is an apocalyptic number.

It is an amenable number.

402263622444 is an abundant number, since it is smaller than the sum of its proper divisors (548094566868).

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

402263622444 is a wasteful number, since it uses less digits than its factorization.

402263622444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184806 (or 184804 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 39.

Adding to 402263622444 its reverse (444226362204), we get a palindrome (846489984648).

The spelling of 402263622444 in words is "four hundred two billion, two hundred sixty-three million, six hundred twenty-two thousand, four hundred forty-four".