420116215 has 16 divisors (see below), whose sum is σ = 510713280. Its totient is φ = 331729920.

The previous prime is 420116209. The next prime is 420116227. The reversal of 420116215 is 512611024.

It is not a de Polignac number, because 420116215 - 2¹⁷ = 419985143 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 222646 + ... + 224524.

It is an arithmetic number, because the mean of its divisors is an integer number (31919580).

Almost surely, 2^420116215 is an apocalyptic number.

420116215 is a deficient number, since it is larger than the sum of its proper divisors (90597065).

420116215 is a wasteful number, since it uses less digits than its factorization.

420116215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 420116215 is about 20496.7366914834. The cubic root of 420116215 is about 748.9563053126.

Adding to 420116215 its reverse (512611024), we get a palindrome (932727239).

The spelling of 420116215 in words is "four hundred twenty million, one hundred sixteen thousand, two hundred fifteen".