420663265 has 16 divisors (see below), whose sum is σ = 552479616. Its totient is φ = 304940800.

The previous prime is 420663263. The next prime is 420663289. The reversal of 420663265 is 562366024.

It is not a de Polignac number, because 420663265 - 2¹ = 420663263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420663265.

It is not an unprimeable number, because it can be changed into a prime (420663263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4809 + ... + 29401.

It is an arithmetic number, because the mean of its divisors is an integer number (34529976).

Almost surely, 2^420663265 is an apocalyptic number.

It is an amenable number.

420663265 is a deficient number, since it is larger than the sum of its proper divisors (131816351).

420663265 is a wasteful number, since it uses less digits than its factorization.

420663265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24920.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 420663265 is about 20510.0771573390. The cubic root of 420663265 is about 749.2812462255.

The spelling of 420663265 in words is "four hundred twenty million, six hundred sixty-three thousand, two hundred sixty-five".