1806378268 has 6 divisors (see below), whose sum is σ = 3161161976. Its totient is φ = 903189132.

The previous prime is 1806378263. The next prime is 1806378311. The reversal of 1806378268 is 8628736081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806378263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225797280 + ... + 225797287.

Almost surely, 2^1806378268 is an apocalyptic number.

It is an amenable number.

1806378268 is a deficient number, since it is larger than the sum of its proper divisors (1354783708).

1806378268 is a wasteful number, since it uses less digits than its factorization.

1806378268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451594571 (or 451594569 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 1806378268 is about 42501.5090085046. The cubic root of 1806378268 is about 1217.8755169851.

The spelling of 1806378268 in words is "one billion, eight hundred six million, three hundred seventy-eight thousand, two hundred sixty-eight".