401130621 has 12 divisors (see below), whose sum is σ = 582415548. Its totient is φ = 266033664.

The previous prime is 401130619. The next prime is 401130629. The reversal of 401130621 is 126031104.

It is a happy number.

401130621 is a `hidden beast` number, since 4 + 0 + 11 + 30 + 621 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53494596 + 347636025 = 7314^2 + 18645^2 .

It is not a de Polignac number, because 401130621 - 2¹ = 401130619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 401130594 and 401130603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401130629) 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 11 ways as a sum of consecutive naturals, for example, 113730 + ... + 117203.

It is an arithmetic number, because the mean of its divisors is an integer number (48534629).

Almost surely, 2^401130621 is an apocalyptic number.

It is an amenable number.

401130621 is a deficient number, since it is larger than the sum of its proper divisors (181284927).

401130621 is a wasteful number, since it uses less digits than its factorization.

401130621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231132 (or 231129 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 401130621 is about 20028.2455796807. The cubic root of 401130621 is about 737.4998539117.

Adding to 401130621 its reverse (126031104), we get a palindrome (527161725).

The spelling of 401130621 in words is "four hundred one million, one hundred thirty thousand, six hundred twenty-one".