411432021 has 96 divisors (see below), whose sum is σ = 823587840. Its totient is φ = 197121600.

The previous prime is 411432017. The next prime is 411432083. The reversal of 411432021 is 120234114.

It is not a de Polignac number, because 411432021 - 2² = 411432017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 411431985 and 411432003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411432221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 350766 + ... + 351936.

It is an arithmetic number, because the mean of its divisors is an integer number (8579040).

Almost surely, 2^411432021 is an apocalyptic number.

It is an amenable number.

411432021 is an abundant number, since it is smaller than the sum of its proper divisors (412155819).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

411432021 is a wasteful number, since it uses less digits than its factorization.

411432021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224 (or 1205 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 411432021 is about 20283.7871463886. The cubic root of 411432021 is about 743.7597917314.

Adding to 411432021 its reverse (120234114), we get a palindrome (531666135).

The spelling of 411432021 in words is "four hundred eleven million, four hundred thirty-two thousand, twenty-one".