1968894020 has 12 divisors (see below), whose sum is σ = 4134677484. Its totient is φ = 787557600.

The previous prime is 1968893977. The next prime is 1968894029. The reversal of 1968894020 is 204988691.

It can be written as a sum of positive squares in 2 ways, for example, as 1110755584 + 858138436 = 33328^2 + 29294^2 .

It is not an unprimeable number, because it can be changed into a prime (1968894029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49222331 + ... + 49222370.

It is an arithmetic number, because the mean of its divisors is an integer number (344556457).

Almost surely, 2^1968894020 is an apocalyptic number.

1968894020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1968894020 is an abundant number, since it is smaller than the sum of its proper divisors (2165783464).

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

1968894020 is a wasteful number, since it uses less digits than its factorization.

1968894020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98444710 (or 98444708 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 1968894020 is about 44372.2212651114. The cubic root of 1968894020 is about 1253.3550444846.

The spelling of 1968894020 in words is "one billion, nine hundred sixty-eight million, eight hundred ninety-four thousand, twenty".