1928749088 has 96 divisors (see below), whose sum is σ = 4569820416. Its totient is φ = 783433728.

The previous prime is 1928749087. The next prime is 1928749153. The reversal of 1928749088 is 8809478291.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (1928749087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580520 + ... + 583832.

It is an arithmetic number, because the mean of its divisors is an integer number (47602296).

Almost surely, 2^1928749088 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 1928749088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2284910208).

1928749088 is an abundant number, since it is smaller than the sum of its proper divisors (2641071328).

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

1928749088 is a wasteful number, since it uses less digits than its factorization.

1928749088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466 (or 3458 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 56.

The square root of 1928749088 is about 43917.5259776777. The cubic root of 1928749088 is about 1244.7780205630.

The spelling of 1928749088 in words is "one billion, nine hundred twenty-eight million, seven hundred forty-nine thousand, eighty-eight".