415047321 has 20 divisors (see below), whose sum is σ = 667703652. Its totient is φ = 255413088.

The previous prime is 415047319. The next prime is 415047341. The reversal of 415047321 is 123740514.

It can be written as a sum of positive squares in 2 ways, for example, as 202208400 + 212838921 = 14220^2 + 14589^2 .

It is not a de Polignac number, because 415047321 - 2¹ = 415047319 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (415047301) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 196026 + ... + 198131.

Almost surely, 2^415047321 is an apocalyptic number.

It is an amenable number.

415047321 is a deficient number, since it is larger than the sum of its proper divisors (252656331).

415047321 is a wasteful number, since it uses less digits than its factorization.

415047321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394182 (or 394173 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 415047321 is about 20372.7102026215. The cubic root of 415047321 is about 745.9319424385.

Adding to 415047321 its reverse (123740514), we get a palindrome (538787835).

The spelling of 415047321 in words is "four hundred fifteen million, forty-seven thousand, three hundred twenty-one".