413568621 has 12 divisors (see below), whose sum is σ = 599419548. Its totient is φ = 274769664.

The previous prime is 413568619. The next prime is 413568637. The reversal of 413568621 is 126865314.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 254051721 + 159516900 = 15939^2 + 12630^2 .

It is not a de Polignac number, because 413568621 - 2¹ = 413568619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (413568691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75780 + ... + 81053.

It is an arithmetic number, because the mean of its divisors is an integer number (49951629).

Almost surely, 2^413568621 is an apocalyptic number.

It is an amenable number.

413568621 is a deficient number, since it is larger than the sum of its proper divisors (185850927).

413568621 is a wasteful number, since it uses less digits than its factorization.

413568621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157132 (or 157129 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 413568621 is about 20336.3866259471. The cubic root of 413568621 is about 745.0450378910.

The spelling of 413568621 in words is "four hundred thirteen million, five hundred sixty-eight thousand, six hundred twenty-one".