411401021 has 4 divisors (see below), whose sum is σ = 415041852. Its totient is φ = 407760192.

The previous prime is 411401017. The next prime is 411401027. The reversal of 411401021 is 120104114.

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 136305625 + 275095396 = 11675^2 + 16586^2 .

It is a cyclic number.

It is not a de Polignac number, because 411401021 - 2² = 411401017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 411400987 and 411401005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411401027) 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, 1820246 + ... + 1820471.

It is an arithmetic number, because the mean of its divisors is an integer number (103760463).

Almost surely, 2^411401021 is an apocalyptic number.

It is an amenable number.

411401021 is a deficient number, since it is larger than the sum of its proper divisors (3640831).

411401021 is a wasteful number, since it uses less digits than its factorization.

411401021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640830.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 411401021 is about 20283.0229748921. The cubic root of 411401021 is about 743.7411113407.

Adding to 411401021 its reverse (120104114), we get a palindrome (531505135).

The spelling of 411401021 in words is "four hundred eleven million, four hundred one thousand, twenty-one".