1912800528 has 160 divisors (see below), whose sum is σ = 5889801600. Its totient is φ = 592510464.

The previous prime is 1912800523. The next prime is 1912800529. The reversal of 1912800528 is 8250082191.

1912800528 is a `hidden beast` number, since 1 + 9 + 128 + 0 + 0 + 528 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1912800492 and 1912800501.

It is not an unprimeable number, because it can be changed into a prime (1912800523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432826 + ... + 437222.

It is an arithmetic number, because the mean of its divisors is an integer number (36811260).

Almost surely, 2^1912800528 is an apocalyptic number.

1912800528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1912800528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2944900800).

1912800528 is an abundant number, since it is smaller than the sum of its proper divisors (3977001072).

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

1912800528 is a wasteful number, since it uses less digits than its factorization.

1912800528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4486 (or 4474 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 1912800528 is about 43735.5750848208. The cubic root of 1912800528 is about 1241.3375542698.

The spelling of 1912800528 in words is "one billion, nine hundred twelve million, eight hundred thousand, five hundred twenty-eight".