1918299346 has 12 divisors (see below), whose sum is σ = 3056668218. Its totient is φ = 902728832.

The previous prime is 1918299343. The next prime is 1918299347. The reversal of 1918299346 is 6439928191.

It can be written as a sum of positive squares in 3 ways, for example, as 1897038025 + 21261321 = 43555^2 + 4611^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1918299293 and 1918299302.

It is not an unprimeable number, because it can be changed into a prime (1918299343) 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 5 ways as a sum of consecutive naturals, for example, 1658851 + ... + 1660006.

Almost surely, 2^1918299346 is an apocalyptic number.

1918299346 is a deficient number, since it is larger than the sum of its proper divisors (1138368872).

1918299346 is a wasteful number, since it uses less digits than its factorization.

1918299346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318893 (or 3318876 counting only the distinct ones).

The product of its digits is 839808, while the sum is 52.

The square root of 1918299346 is about 43798.3943312994. The cubic root of 1918299346 is about 1242.5259268004.

The spelling of 1918299346 in words is "one billion, nine hundred eighteen million, two hundred ninety-nine thousand, three hundred forty-six".