420578265 has 8 divisors (see below), whose sum is σ = 672925248. Its totient is φ = 224308400.

The previous prime is 420578261. The next prime is 420578273. The reversal of 420578265 is 562875024.

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

It is not a de Polignac number, because 420578265 - 2² = 420578261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420578261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14019261 + ... + 14019290.

It is an arithmetic number, because the mean of its divisors is an integer number (84115656).

Almost surely, 2^420578265 is an apocalyptic number.

It is an amenable number.

420578265 is a deficient number, since it is larger than the sum of its proper divisors (252346983).

420578265 is a wasteful number, since it uses less digits than its factorization.

420578265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28038559.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 420578265 is about 20508.0049005260. The cubic root of 420578265 is about 749.2307757730.

The spelling of 420578265 in words is "four hundred twenty million, five hundred seventy-eight thousand, two hundred sixty-five".