1968682338 has 48 divisors (see below), whose sum is σ = 4901822016. Its totient is φ = 559366560.

The previous prime is 1968682333. The next prime is 1968682343. The reversal of 1968682338 is 8332868691.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1968682333) and next prime (1968682343).

It is not an unprimeable number, because it can be changed into a prime (1968682333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20356 + ... + 65967.

It is an arithmetic number, because the mean of its divisors is an integer number (102121292).

Almost surely, 2^1968682338 is an apocalyptic number.

1968682338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1968682338 is an abundant number, since it is smaller than the sum of its proper divisors (2933139678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1968682338 is a wasteful number, since it uses less digits than its factorization.

1968682338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86519 (or 86516 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 1968682338 is about 44369.8359023335. The cubic root of 1968682338 is about 1253.3101254914.

The spelling of 1968682338 in words is "one billion, nine hundred sixty-eight million, six hundred eighty-two thousand, three hundred thirty-eight".