411242520 has 128 divisors (see below), whose sum is σ = 1335398400. Its totient is φ = 100713984.

The previous prime is 411242509. The next prime is 411242537. The reversal of 411242520 is 25242114.

411242520 = T₁₅₇ + T₁₅₈ + ... + T₁₃₅₁.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 372289 + ... + 373391.

It is an arithmetic number, because the mean of its divisors is an integer number (10432800).

Almost surely, 2^411242520 is an apocalyptic number.

411242520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 411242520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (667699200).

411242520 is an abundant number, since it is smaller than the sum of its proper divisors (924155880).

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

411242520 is a wasteful number, since it uses less digits than its factorization.

411242520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369 (or 1365 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 411242520 is about 20279.1153653210. The cubic root of 411242520 is about 743.6455850406.

Adding to 411242520 its reverse (25242114), we get a palindrome (436484634).

The spelling of 411242520 in words is "four hundred eleven million, two hundred forty-two thousand, five hundred twenty".