420850286 has 4 divisors (see below), whose sum is σ = 631275432. Its totient is φ = 210425142.

The previous prime is 420850279. The next prime is 420850333. The reversal of 420850286 is 682058024.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×420850286² = 354229926452563592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105212570 + ... + 105212573.

It is an arithmetic number, because the mean of its divisors is an integer number (157818858).

Almost surely, 2^420850286 is an apocalyptic number.

420850286 is a deficient number, since it is larger than the sum of its proper divisors (210425146).

420850286 is a wasteful number, since it uses less digits than its factorization.

420850286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210425145.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 420850286 is about 20514.6358973295. The cubic root of 420850286 is about 749.3922697590.

The spelling of 420850286 in words is "four hundred twenty million, eight hundred fifty thousand, two hundred eighty-six".