415230021 has 36 divisors (see below), whose sum is σ = 626869152. Its totient is φ = 264790944.

The previous prime is 415230019. The next prime is 415230031. The reversal of 415230021 is 120032514.

415230021 is a `hidden beast` number, since 415 + 230 + 0 + 21 = 666.

It is not a de Polignac number, because 415230021 - 2¹ = 415230019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 415229976 and 415230003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (415230031) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 825256 + ... + 825758.

It is an arithmetic number, because the mean of its divisors is an integer number (17413032).

Almost surely, 2^415230021 is an apocalyptic number.

It is an amenable number.

415230021 is a deficient number, since it is larger than the sum of its proper divisors (211639131).

415230021 is a wasteful number, since it uses less digits than its factorization.

415230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 415230021 is about 20377.1936487829. The cubic root of 415230021 is about 746.0413771681.

Adding to 415230021 its reverse (120032514), we get a palindrome (535262535).

The spelling of 415230021 in words is "four hundred fifteen million, two hundred thirty thousand, twenty-one".