411040021 has 8 divisors (see below), whose sum is σ = 477461504. Its totient is φ = 346543920.

The previous prime is 411040009. The next prime is 411040033. The reversal of 411040021 is 120040114.

It is an interprime number because it is at equal distance from previous prime (411040009) and next prime (411040033).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 411040021 - 2⁵ = 411039989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 411039983 and 411040010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (411040001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480885 + ... + 481738.

It is an arithmetic number, because the mean of its divisors is an integer number (59682688).

Almost surely, 2^411040021 is an apocalyptic number.

It is an amenable number.

411040021 is a deficient number, since it is larger than the sum of its proper divisors (66421483).

411040021 is an equidigital number, since it uses as much as digits as its factorization.

411040021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962691.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 411040021 is about 20274.1219538603. The cubic root of 411040021 is about 743.5235060535.

Adding to 411040021 its reverse (120040114), we get a palindrome (531080135).

The spelling of 411040021 in words is "four hundred eleven million, forty thousand, twenty-one".