1969728 has 28 divisors (see below), whose sum is σ = 5212080. Its totient is φ = 656512.

The previous prime is 1969699. The next prime is 1969729. The reversal of 1969728 is 8279691.

It is a self number, because there is not a number n which added to its sum of digits gives 1969728.

It is not an unprimeable number, because it can be changed into a prime (1969729) 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, 4938 + ... + 5321.

2^1969728 is an apocalyptic number.

It is an amenable number.

1969728 is an abundant number, since it is smaller than the sum of its proper divisors (3242352).

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

1969728 is a wasteful number, since it uses less digits than its factorization.

1969728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10274 (or 10264 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The square root of 1969728 is about 1403.4699854290. The cubic root of 1969728 is about 125.3531984005.

The spelling of 1969728 in words is "one million, nine hundred sixty-nine thousand, seven hundred twenty-eight".