415230217 has 4 divisors (see below), whose sum is σ = 415321236. Its totient is φ = 415139200.

The previous prime is 415230197. The next prime is 415230239. The reversal of 415230217 is 712032514.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35331136 + 379899081 = 5944^2 + 19491^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-415230217 is a prime.

It is a super-2 number, since 2×415230217² = 344832266219734178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 415230191 and 415230200.

It is not an unprimeable number, because it can be changed into a prime (415230917) 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, 38284 + ... + 47917.

It is an arithmetic number, because the mean of its divisors is an integer number (103830309).

Almost surely, 2^415230217 is an apocalyptic number.

It is an amenable number.

415230217 is a deficient number, since it is larger than the sum of its proper divisors (91019).

415230217 is an equidigital number, since it uses as much as digits as its factorization.

415230217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91018.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 415230217 is about 20377.1984580805. The cubic root of 415230217 is about 746.0414945521.

The spelling of 415230217 in words is "four hundred fifteen million, two hundred thirty thousand, two hundred seventeen".