415987820 has 12 divisors (see below), whose sum is σ = 873574464. Its totient is φ = 166395120.

The previous prime is 415987813. The next prime is 415987823. The reversal of 415987820 is 28789514.

It is not an unprimeable number, because it can be changed into a prime (415987823) 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, 10399676 + ... + 10399715.

It is an arithmetic number, because the mean of its divisors is an integer number (72797872).

Almost surely, 2^415987820 is an apocalyptic number.

It is an amenable number.

415987820 is an abundant number, since it is smaller than the sum of its proper divisors (457586644).

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

415987820 is a wasteful number, since it uses less digits than its factorization.

415987820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20799400 (or 20799398 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 415987820 is about 20395.7794653698. The cubic root of 415987820 is about 746.4949457177.

The spelling of 415987820 in words is "four hundred fifteen million, nine hundred eighty-seven thousand, eight hundred twenty".