1928690736 has 80 divisors (see below), whose sum is σ = 5704301568. Its totient is φ = 550080000.

The previous prime is 1928690693. The next prime is 1928690767. The reversal of 1928690736 is 6370968291.

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 15 ways as a sum of consecutive naturals, for example, 197161 + ... + 206711.

Almost surely, 2^1928690736 is an apocalyptic number.

1928690736 is a gapful number since it is divisible by the number (16) 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 1928690736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2852150784).

1928690736 is an abundant number, since it is smaller than the sum of its proper divisors (3775610832).

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

1928690736 is a wasteful number, since it uses less digits than its factorization.

1928690736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10170 (or 10164 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 1928690736 is about 43916.8616365059. The cubic root of 1928690736 is about 1244.7654673456.

The spelling of 1928690736 in words is "one billion, nine hundred twenty-eight million, six hundred ninety thousand, seven hundred thirty-six".