420206265 has 16 divisors (see below), whose sum is σ = 747033600. Its totient is φ = 224109936.

The previous prime is 420206257. The next prime is 420206327. The reversal of 420206265 is 562602024.

It is not a de Polignac number, because 420206265 - 2³ = 420206257 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1556185 + ... + 1556454.

It is an arithmetic number, because the mean of its divisors is an integer number (46689600).

Almost surely, 2^420206265 is an apocalyptic number.

420206265 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

420206265 is a deficient number, since it is larger than the sum of its proper divisors (326827335).

420206265 is a wasteful number, since it uses less digits than its factorization.

420206265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112653 (or 3112647 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 420206265 is about 20498.9332649287. The cubic root of 420206265 is about 749.0098132823.

Adding to 420206265 its reverse (562602024), we get a palindrome (982808289).

The spelling of 420206265 in words is "four hundred twenty million, two hundred six thousand, two hundred sixty-five".