1684522226 has 4 divisors (see below), whose sum is σ = 2526783342. Its totient is φ = 842261112.

The previous prime is 1684522223. The next prime is 1684522243. The reversal of 1684522226 is 6222254861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6222254861 = 379 ⋅16417559.

It can be written as a sum of positive squares in only one way, i.e., 883575625 + 800946601 = 29725^2 + 28301^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1684522226.

It is not an unprimeable number, because it can be changed into a prime (1684522223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421130555 + ... + 421130558.

Almost surely, 2^1684522226 is an apocalyptic number.

1684522226 is a deficient number, since it is larger than the sum of its proper divisors (842261116).

1684522226 is an equidigital number, since it uses as much as digits as its factorization.

1684522226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842261115.

The product of its digits is 92160, while the sum is 38.

The square root of 1684522226 is about 41042.9314986150. The cubic root of 1684522226 is about 1189.8500919843.

The spelling of 1684522226 in words is "one billion, six hundred eighty-four million, five hundred twenty-two thousand, two hundred twenty-six".