411522421 has 4 divisors (see below), whose sum is σ = 411732972. Its totient is φ = 411311872.

The previous prime is 411522407. The next prime is 411522437. The reversal of 411522421 is 124225114.

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 88924900 + 322597521 = 9430^2 + 17961^2 .

It is a cyclic number.

It is not a de Polignac number, because 411522421 - 2⁹ = 411521909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 411522392 and 411522401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411522401) 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, 102316 + ... + 106261.

It is an arithmetic number, because the mean of its divisors is an integer number (102933243).

Almost surely, 2^411522421 is an apocalyptic number.

It is an amenable number.

411522421 is a deficient number, since it is larger than the sum of its proper divisors (210551).

411522421 is a wasteful number, since it uses less digits than its factorization.

411522421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210550.

The product of its digits is 640, while the sum is 22.

The square root of 411522421 is about 20286.0154047068. The cubic root of 411522421 is about 743.8142608036.

Adding to 411522421 its reverse (124225114), we get a palindrome (535747535).

The spelling of 411522421 in words is "four hundred eleven million, five hundred twenty-two thousand, four hundred twenty-one".