411640321 has 4 divisors (see below), whose sum is σ = 417438144. Its totient is φ = 405842500.

The previous prime is 411640309. The next prime is 411640331. The reversal of 411640321 is 123046114.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 411640321 - 2¹⁹ = 411116033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 411640292 and 411640301.

It is not an unprimeable number, because it can be changed into a prime (411640331) 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, 2898805 + ... + 2898946.

It is an arithmetic number, because the mean of its divisors is an integer number (104359536).

Almost surely, 2^411640321 is an apocalyptic number.

It is an amenable number.

411640321 is a deficient number, since it is larger than the sum of its proper divisors (5797823).

411640321 is an equidigital number, since it uses as much as digits as its factorization.

411640321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5797822.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 411640321 is about 20288.9211393805. The cubic root of 411640321 is about 743.8852875758.

Adding to 411640321 its reverse (123046114), we get a palindrome (534686435).

The spelling of 411640321 in words is "four hundred eleven million, six hundred forty thousand, three hundred twenty-one".