401013444 has 24 divisors (see below), whose sum is σ = 1007675200. Its totient is φ = 123388704.

The previous prime is 401013407. The next prime is 401013461. The reversal of 401013444 is 444310104.

It is a super-2 number, since 2×401013444² = 321623564537482272, 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 401013444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1285144 + ... + 1285455.

Almost surely, 2^401013444 is an apocalyptic number.

It is an amenable number.

401013444 is an abundant number, since it is smaller than the sum of its proper divisors (606661756).

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

401013444 is a wasteful number, since it uses less digits than its factorization.

401013444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570619 (or 2570617 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 401013444 is about 20025.3200723484. The cubic root of 401013444 is about 737.4280348816.

Adding to 401013444 its reverse (444310104), we get a palindrome (845323548).

The spelling of 401013444 in words is "four hundred one million, thirteen thousand, four hundred forty-four".