416531220 has 48 divisors (see below), whose sum is σ = 1332901248. Its totient is φ = 95207040.

The previous prime is 416531207. The next prime is 416531251. The reversal of 416531220 is 22135614.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495451 + ... + 496290.

It is an arithmetic number, because the mean of its divisors is an integer number (27768776).

Almost surely, 2^416531220 is an apocalyptic number.

It is an amenable number.

416531220 is an abundant number, since it is smaller than the sum of its proper divisors (916370028).

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

416531220 is a wasteful number, since it uses less digits than its factorization.

416531220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991760 (or 991758 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 416531220 is about 20409.0965013153. The cubic root of 416531220 is about 746.8198501437.

Adding to 416531220 its reverse (22135614), we get a palindrome (438666834).

The spelling of 416531220 in words is "four hundred sixteen million, five hundred thirty-one thousand, two hundred twenty".