415665828 has 36 divisors (see below), whose sum is σ = 1053915408. Its totient is φ = 138132720.

The previous prime is 415665823. The next prime is 415665841. The reversal of 415665828 is 828566514.

415665828 is a `hidden beast` number, since 4 + 1 + 5 + 66 + 582 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (415665823) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5526 + ... + 29357.

It is an arithmetic number, because the mean of its divisors is an integer number (29275428).

Almost surely, 2^415665828 is an apocalyptic number.

It is an amenable number.

415665828 is an abundant number, since it is smaller than the sum of its proper divisors (638249580).

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

415665828 is a wasteful number, since it uses less digits than its factorization.

415665828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35224 (or 35219 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 415665828 is about 20387.8843434036. The cubic root of 415665828 is about 746.3022898807.

The spelling of 415665828 in words is "four hundred fifteen million, six hundred sixty-five thousand, eight hundred twenty-eight".