401011144 has 32 divisors (see below), whose sum is σ = 782421120. Its totient is φ = 192527296.

The previous prime is 401011139. The next prime is 401011151. The reversal of 401011144 is 441110104.

It is a super-2 number, since 2×401011144² = 321619875224377472, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9867 + ... + 29989.

It is an arithmetic number, because the mean of its divisors is an integer number (24450660).

Almost surely, 2^401011144 is an apocalyptic number.

It is an amenable number.

401011144 is a deficient number, since it is larger than the sum of its proper divisors (381409976).

401011144 is a wasteful number, since it uses less digits than its factorization.

401011144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20229 (or 20225 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 401011144 is about 20025.2626449692. The cubic root of 401011144 is about 737.4266250471.

Adding to 401011144 its reverse (441110104), we get a palindrome (842121248).

The spelling of 401011144 in words is "four hundred one million, eleven thousand, one hundred forty-four".