401131344 has 80 divisors (see below), whose sum is σ = 1094126400. Its totient is φ = 126286848.

The previous prime is 401131333. The next prime is 401131361. The reversal of 401131344 is 443131104.

It is a self number, because there is not a number n which added to its sum of digits gives 401131344.

It is a congruent number.

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, 518542 + ... + 519314.

It is an arithmetic number, because the mean of its divisors is an integer number (13676580).

Almost surely, 2^401131344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401131344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547063200).

401131344 is an abundant number, since it is smaller than the sum of its proper divisors (692995056).

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

401131344 is a wasteful number, since it uses less digits than its factorization.

401131344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372 (or 1366 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 401131344 is about 20028.2636291816. The cubic root of 401131344 is about 737.5002970027.

Adding to 401131344 its reverse (443131104), we get a palindrome (844262448).

The spelling of 401131344 in words is "four hundred one million, one hundred thirty-one thousand, three hundred forty-four".