1818396248 has 32 divisors (see below), whose sum is σ = 3496500000. Its totient is φ = 886045440.

The previous prime is 1818396247. The next prime is 1818396259. The reversal of 1818396248 is 8426938181.

It is a junction number, because it is equal to n+sod(n) for n = 1818396196 and 1818396205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1818396247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361253 + ... + 366251.

It is an arithmetic number, because the mean of its divisors is an integer number (109265625).

Almost surely, 2^1818396248 is an apocalyptic number.

It is an amenable number.

1818396248 is a deficient number, since it is larger than the sum of its proper divisors (1678103752).

1818396248 is a wasteful number, since it uses less digits than its factorization.

1818396248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6155 (or 6151 counting only the distinct ones).

The product of its digits is 663552, while the sum is 50.

The square root of 1818396248 is about 42642.6576094877. The cubic root of 1818396248 is about 1220.5704239252.

The spelling of 1818396248 in words is "one billion, eight hundred eighteen million, three hundred ninety-six thousand, two hundred forty-eight".