401332044 has 96 divisors (see below), whose sum is σ = 1011225600. Its totient is φ = 123621120.

The previous prime is 401332021. The next prime is 401332049. The reversal of 401332044 is 440233104.

It is a super-2 number, since 2×401332044² = 322134819082435872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401332044.

It is not an unprimeable number, because it can be changed into a prime (401332049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 913977 + ... + 914415.

It is an arithmetic number, because the mean of its divisors is an integer number (10533600).

Almost surely, 2^401332044 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 401332044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (505612800).

401332044 is an abundant number, since it is smaller than the sum of its proper divisors (609893556).

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

401332044 is a wasteful number, since it uses less digits than its factorization.

401332044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 401332044 is about 20033.2734219847. The cubic root of 401332044 is about 737.6232755339.

Adding to 401332044 its reverse (440233104), we get a palindrome (841565148).

The spelling of 401332044 in words is "four hundred one million, three hundred thirty-two thousand, forty-four".