420709215 has 64 divisors (see below), whose sum is σ = 732856320. Its totient is φ = 205476480.

The previous prime is 420709193. The next prime is 420709231. The reversal of 420709215 is 512907024.

It is not a de Polignac number, because 420709215 - 2¹¹ = 420707167 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1486464 + ... + 1486746.

It is an arithmetic number, because the mean of its divisors is an integer number (11450880).

Almost surely, 2^420709215 is an apocalyptic number.

420709215 is a deficient number, since it is larger than the sum of its proper divisors (312147105).

420709215 is a wasteful number, since it uses less digits than its factorization.

420709215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 420709215 is about 20511.1973078121. The cubic root of 420709215 is about 749.3085271274.

The spelling of 420709215 in words is "four hundred twenty million, seven hundred nine thousand, two hundred fifteen".