420775485 has 16 divisors (see below), whose sum is σ = 725028864. Its totient is φ = 207150912.

The previous prime is 420775451. The next prime is 420775549. The reversal of 420775485 is 584577024.

It is not a de Polignac number, because 420775485 - 2¹² = 420771389 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 1078717 + ... + 1079106.

It is an arithmetic number, because the mean of its divisors is an integer number (45314304).

Almost surely, 2^420775485 is an apocalyptic number.

It is an amenable number.

420775485 is a deficient number, since it is larger than the sum of its proper divisors (304253379).

420775485 is a wasteful number, since it uses less digits than its factorization.

420775485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157844.

The product of its (nonzero) digits is 313600, while the sum is 42.

The square root of 420775485 is about 20512.8127032838. The cubic root of 420775485 is about 749.3478686862.

The spelling of 420775485 in words is "four hundred twenty million, seven hundred seventy-five thousand, four hundred eighty-five".