401335444 has 12 divisors (see below), whose sum is σ = 717280704. Its totient is φ = 196398104.

The previous prime is 401335343. The next prime is 401335447. The reversal of 401335444 is 444533104.

It is a super-2 number, since 2×401335444² = 322140277221354272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401335447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067194 + ... + 1067569.

It is an arithmetic number, because the mean of its divisors is an integer number (59773392).

Almost surely, 2^401335444 is an apocalyptic number.

It is an amenable number.

401335444 is a deficient number, since it is larger than the sum of its proper divisors (315945260).

401335444 is a wasteful number, since it uses less digits than its factorization.

401335444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134814 (or 2134812 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 401335444 is about 20033.3582806278. The cubic root of 401335444 is about 737.6253585240.

Adding to 401335444 its reverse (444533104), we get a palindrome (845868548).

The spelling of 401335444 in words is "four hundred one million, three hundred thirty-five thousand, four hundred forty-four".