421147415 has 8 divisors (see below), whose sum is σ = 544252128. Its totient is φ = 311001120.

The previous prime is 421147403. The next prime is 421147421. The reversal of 421147415 is 514741124.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421147415 - 2⁶ = 421147351 is a prime.

It is a super-2 number, since 2×421147415² = 354730290322364450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3239531 + ... + 3239660.

It is an arithmetic number, because the mean of its divisors is an integer number (68031516).

Almost surely, 2^421147415 is an apocalyptic number.

421147415 is a deficient number, since it is larger than the sum of its proper divisors (123104713).

421147415 is a wasteful number, since it uses less digits than its factorization.

421147415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6479209.

The product of its digits is 4480, while the sum is 29.

The square root of 421147415 is about 20521.8764980204. The cubic root of 421147415 is about 749.5685904138.

Adding to 421147415 its reverse (514741124), we get a palindrome (935888539).

The spelling of 421147415 in words is "four hundred twenty-one million, one hundred forty-seven thousand, four hundred fifteen".