1868727226 has 8 divisors (see below), whose sum is σ = 2803793940. Its totient is φ = 934129248.

The previous prime is 1868727221. The next prime is 1868727229. The reversal of 1868727226 is 6227278681.

It can be written as a sum of positive squares in 2 ways, for example, as 1798184025 + 70543201 = 42405^2 + 8399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1868727226.

It is not an unprimeable number, because it can be changed into a prime (1868727221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107041 + ... + 123268.

Almost surely, 2^1868727226 is an apocalyptic number.

1868727226 is a deficient number, since it is larger than the sum of its proper divisors (935066714).

1868727226 is a wasteful number, since it uses less digits than its factorization.

1868727226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234368.

The product of its digits is 903168, while the sum is 49.

The square root of 1868727226 is about 43228.7777527887. Note that the first 4 decimals coincide. The cubic root of 1868727226 is about 1231.7293905318.

The spelling of 1868727226 in words is "one billion, eight hundred sixty-eight million, seven hundred twenty-seven thousand, two hundred twenty-six".