1928745336 has 128 divisors (see below), whose sum is σ = 5931048960. Its totient is φ = 510105600.

The previous prime is 1928745323. The next prime is 1928745367. The reversal of 1928745336 is 6335478291.

It is a super-2 number, since 2×1928745336² = 7440117142283505792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168681 + ... + 179751.

It is an arithmetic number, because the mean of its divisors is an integer number (46336320).

Almost surely, 2^1928745336 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 1928745336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2965524480).

1928745336 is an abundant number, since it is smaller than the sum of its proper divisors (4002303624).

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

1928745336 is a wasteful number, since it uses less digits than its factorization.

1928745336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11165 (or 11161 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The square root of 1928745336 is about 43917.4832612252. The cubic root of 1928745336 is about 1244.7772134059. Note that the first 3 decimals are identical.

The spelling of 1928745336 in words is "one billion, nine hundred twenty-eight million, seven hundred forty-five thousand, three hundred thirty-six".