401424113 has 4 divisors (see below), whose sum is σ = 401791140. Its totient is φ = 401057088.

The previous prime is 401424073. The next prime is 401424139. The reversal of 401424113 is 311424104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 261404224 + 140019889 = 16168^2 + 11833^2 .

It is a cyclic number.

It is not a de Polignac number, because 401424113 - 2¹⁴ = 401407729 is a prime.

It is a super-2 number, since 2×401424113² = 322282636995673538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401424143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181868 + ... + 184061.

It is an arithmetic number, because the mean of its divisors is an integer number (100447785).

Almost surely, 2^401424113 is an apocalyptic number.

It is an amenable number.

401424113 is a deficient number, since it is larger than the sum of its proper divisors (367027).

401424113 is a wasteful number, since it uses less digits than its factorization.

401424113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367026.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 401424113 is about 20035.5711922570. The cubic root of 401424113 is about 737.6796769151.

Adding to 401424113 its reverse (311424104), we get a palindrome (712848217).

Subtracting from 401424113 its reverse (311424104), we obtain a palindrome (90000009).

The spelling of 401424113 in words is "four hundred one million, four hundred twenty-four thousand, one hundred thirteen".