402404422244 has 48 divisors (see below), whose sum is σ = 774170199936. Its totient is φ = 181499136000.

The previous prime is 402404422243. The next prime is 402404422291. The reversal of 402404422244 is 442224404204.

It is a self number, because there is not a number n which added to its sum of digits gives 402404422244.

It is not an unprimeable number, because it can be changed into a prime (402404422243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5093444 + ... + 5171844.

It is an arithmetic number, because the mean of its divisors is an integer number (16128545832).

Almost surely, 2^402404422244 is an apocalyptic number.

402404422244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

402404422244 is a deficient number, since it is larger than the sum of its proper divisors (371765777692).

402404422244 is a wasteful number, since it uses less digits than its factorization.

402404422244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79316 (or 79314 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 402404422244 its reverse (442224404204), we get a palindrome (844628826448).

The spelling of 402404422244 in words is "four hundred two billion, four hundred four million, four hundred twenty-two thousand, two hundred forty-four".