1969819072 has 84 divisors (see below), whose sum is σ = 4443684280. Its totient is φ = 858857472.

The previous prime is 1969819069. The next prime is 1969819073. The reversal of 1969819072 is 2709189691.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1969819073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5580048 + ... + 5580400.

Almost surely, 2^1969819072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1969819072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2221842140).

1969819072 is an abundant number, since it is smaller than the sum of its proper divisors (2473865208).

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

1969819072 is an equidigital number, since it uses as much as digits as its factorization.

1969819072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 52.

The square root of 1969819072 is about 44382.6438148968. The cubic root of 1969819072 is about 1253.5513030691.

The spelling of 1969819072 in words is "one billion, nine hundred sixty-nine million, eight hundred nineteen thousand, seventy-two".