1928143152 has 120 divisors (see below), whose sum is σ = 5898327344. Its totient is φ = 584381952.

The previous prime is 1928143067. The next prime is 1928143157. The reversal of 1928143152 is 2513418291.

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

It is not an unprimeable number, because it can be changed into a prime (1928143157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117738 + ... + 133110.

Almost surely, 2^1928143152 is an apocalyptic number.

1928143152 is a gapful number since it is divisible by the number (12) 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 1928143152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2949163672).

1928143152 is an abundant number, since it is smaller than the sum of its proper divisors (3970184192).

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

1928143152 is a wasteful number, since it uses less digits than its factorization.

1928143152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15467 (or 15458 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 1928143152 is about 43910.6268686750. The cubic root of 1928143152 is about 1244.6476537155.

The spelling of 1928143152 in words is "one billion, nine hundred twenty-eight million, one hundred forty-three thousand, one hundred fifty-two".