1968916 has 12 divisors (see below), whose sum is σ = 3459988. Its totient is φ = 980352.

The previous prime is 1968899. The next prime is 1968919. The reversal of 1968916 is 6198691.

It can be written as a sum of positive squares in 2 ways, for example, as 646416 + 1322500 = 804^2 + 1150^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968919) 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, 220 + ... + 1996.

2^1968916 is an apocalyptic number.

It is an amenable number.

1968916 is a deficient number, since it is larger than the sum of its proper divisors (1491072).

1968916 is a wasteful number, since it uses less digits than its factorization.

1968916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058 (or 2056 counting only the distinct ones).

The product of its digits is 23328, while the sum is 40.

The square root of 1968916 is about 1403.1806726149. The cubic root of 1968916 is about 125.3359708464.

The spelling of 1968916 in words is "one million, nine hundred sixty-eight thousand, nine hundred sixteen".