411621540 has 48 divisors (see below), whose sum is σ = 1257318720. Its totient is φ = 99786880.

The previous prime is 411621487. The next prime is 411621541. The reversal of 411621540 is 45126114.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 411621540.

It is not an unprimeable number, because it can be changed into a prime (411621541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311175 + ... + 312494.

It is an arithmetic number, because the mean of its divisors is an integer number (26194140).

Almost surely, 2^411621540 is an apocalyptic number.

It is an amenable number.

411621540 is an abundant number, since it is smaller than the sum of its proper divisors (845697180).

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

411621540 is a wasteful number, since it uses less digits than its factorization.

411621540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623692 (or 623690 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 411621540 is about 20288.4582952969. The cubic root of 411621540 is about 743.8739742024.

Adding to 411621540 its reverse (45126114), we get a palindrome (456747654).

The spelling of 411621540 in words is "four hundred eleven million, six hundred twenty-one thousand, five hundred forty".