420031265 has 8 divisors (see below), whose sum is σ = 516331368. Its totient is φ = 327829120.

The previous prime is 420031259. The next prime is 420031319. The reversal of 420031265 is 562130024.

It can be written as a sum of positive squares in 4 ways, for example, as 19070689 + 400960576 = 4367^2 + 20024^2 .

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

It is not a de Polignac number, because 420031265 - 2¹⁶ = 419965729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420031265.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1024262 + ... + 1024671.

It is an arithmetic number, because the mean of its divisors is an integer number (64541421).

Almost surely, 2^420031265 is an apocalyptic number.

It is an amenable number.

420031265 is a deficient number, since it is larger than the sum of its proper divisors (96300103).

420031265 is a wasteful number, since it uses less digits than its factorization.

420031265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048979.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 420031265 is about 20494.6643056187. The cubic root of 420031265 is about 748.9058207683.

Adding to 420031265 its reverse (562130024), we get a palindrome (982161289).

The spelling of 420031265 in words is "four hundred twenty million, thirty-one thousand, two hundred sixty-five".