401003444 has 12 divisors (see below), whose sum is σ = 702116100. Its totient is φ = 200398848.

The previous prime is 401003401. The next prime is 401003467. The reversal of 401003444 is 444300104.

It can be written as a sum of positive squares in 2 ways, for example, as 310182544 + 90820900 = 17612^2 + 9530^2 .

It is a super-2 number, since 2×401003444² = 321607524199722272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16589 + ... + 32820.

It is an arithmetic number, because the mean of its divisors is an integer number (58509675).

Almost surely, 2^401003444 is an apocalyptic number.

It is an amenable number.

401003444 is a deficient number, since it is larger than the sum of its proper divisors (301112656).

401003444 is a wasteful number, since it uses less digits than its factorization.

401003444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51442 (or 51440 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 401003444 is about 20025.0703868925. The cubic root of 401003444 is about 737.4219051273.

Adding to 401003444 its reverse (444300104), we get a palindrome (845303548).

The spelling of 401003444 in words is "four hundred one million, three thousand, four hundred forty-four".