412822521 has 16 divisors (see below), whose sum is σ = 612620800. Its totient is φ = 274750704.

The previous prime is 412822513. The next prime is 412822547. The reversal of 412822521 is 125228214.

412822521 is a `hidden beast` number, since 412 + 8 + 225 + 21 = 666.

It is not a de Polignac number, because 412822521 - 2³ = 412822513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (412822021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3795 + ... + 28983.

It is an arithmetic number, because the mean of its divisors is an integer number (38288800).

Almost surely, 2^412822521 is an apocalyptic number.

It is an amenable number.

412822521 is a deficient number, since it is larger than the sum of its proper divisors (199798279).

412822521 is a wasteful number, since it uses less digits than its factorization.

412822521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25805 (or 25799 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 412822521 is about 20318.0343783546. The cubic root of 412822521 is about 744.5967344432.

The spelling of 412822521 in words is "four hundred twelve million, eight hundred twenty-two thousand, five hundred twenty-one".