401023444344402 has 192 divisors, whose sum is σ = 953373536317440. Its totient is φ = 111394965571200.

The previous prime is 401023444344401. The next prime is 401023444344407. The reversal of 401023444344402 is 204443444320104.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (401023444344401) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5073445093 + ... + 5073524135.

It is an arithmetic number, because the mean of its divisors is an integer number (4965487168320).

Almost surely, 2^{401023444344402} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401023444344402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (476686768158720).

401023444344402 is an abundant number, since it is smaller than the sum of its proper divisors (552350091973038).

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

401023444344402 is a wasteful number, since it uses less digits than its factorization.

401023444344402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85997 (or 85978 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 39.

Adding to 401023444344402 its reverse (204443444320104), we get a palindrome (605466888664506).

The spelling of 401023444344402 in words is "four hundred one trillion, twenty-three billion, four hundred forty-four million, three hundred forty-four thousand, four hundred two".