420850285 has 16 divisors (see below), whose sum is σ = 540322560. Its totient is φ = 313727040.

The previous prime is 420850279. The next prime is 420850333. The reversal of 420850285 is 582058024.

It is not a de Polignac number, because 420850285 - 2⁵ = 420850253 is a prime.

It is a super-2 number, since 2×420850285² = 354229924769162450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420850285.

It is a congruent number.

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, 30517 + ... + 42106.

It is an arithmetic number, because the mean of its divisors is an integer number (33770160).

Almost surely, 2^420850285 is an apocalyptic number.

It is an amenable number.

420850285 is a deficient number, since it is larger than the sum of its proper divisors (119472275).

420850285 is a wasteful number, since it uses less digits than its factorization.

420850285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72708.

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 420850285 is about 20514.6358729567. The cubic root of 420850285 is about 749.3922691655.

The spelling of 420850285 in words is "four hundred twenty million, eight hundred fifty thousand, two hundred eighty-five".