420775311 has 16 divisors (see below), whose sum is σ = 644250240. Its totient is φ = 241593120.

The previous prime is 420775309. The next prime is 420775367. The reversal of 420775311 is 113577024.

It is not a de Polignac number, because 420775311 - 2¹ = 420775309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420775711) 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 15 ways as a sum of consecutive naturals, for example, 334920 + ... + 336173.

It is an arithmetic number, because the mean of its divisors is an integer number (40265640).

Almost surely, 2^420775311 is an apocalyptic number.

420775311 is a deficient number, since it is larger than the sum of its proper divisors (223474929).

420775311 is a wasteful number, since it uses less digits than its factorization.

420775311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671126.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 420775311 is about 20512.8084620317. The cubic root of 420775311 is about 749.3477653956.

The spelling of 420775311 in words is "four hundred twenty million, seven hundred seventy-five thousand, three hundred eleven".