1968442469 has 8 divisors (see below), whose sum is σ = 2267363328. Its totient is φ = 1673950320.

The previous prime is 1968442453. The next prime is 1968442481. The reversal of 1968442469 is 9642448691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1968442469 - 2⁴ = 1968442453 is a prime.

It is a super-2 number, since 2×1968442469² = 7749531507525631922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1968442469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968442369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1106222 + ... + 1107999.

It is an arithmetic number, because the mean of its divisors is an integer number (283420416).

Almost surely, 2^1968442469 is an apocalyptic number.

It is an amenable number.

1968442469 is a deficient number, since it is larger than the sum of its proper divisors (298920859).

1968442469 is a wasteful number, since it uses less digits than its factorization.

1968442469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214355.

The product of its digits is 2985984, while the sum is 53.

The square root of 1968442469 is about 44367.1327561293. The cubic root of 1968442469 is about 1253.2592213153.

The spelling of 1968442469 in words is "one billion, nine hundred sixty-eight million, four hundred forty-two thousand, four hundred sixty-nine".