1928053636 has 12 divisors (see below), whose sum is σ = 3412005660. Its totient is φ = 953194880.

The previous prime is 1928053627. The next prime is 1928053639. The reversal of 1928053636 is 6363508291.

It can be written as a sum of positive squares in 2 ways, for example, as 247873536 + 1680180100 = 15744^2 + 40990^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1928053592 and 1928053601.

It is not an unprimeable number, because it can be changed into a prime (1928053639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2707585 + ... + 2708296.

It is an arithmetic number, because the mean of its divisors is an integer number (284333805).

Almost surely, 2^1928053636 is an apocalyptic number.

It is an amenable number.

1928053636 is a deficient number, since it is larger than the sum of its proper divisors (1483952024).

1928053636 is a wasteful number, since it uses less digits than its factorization.

1928053636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5415974 (or 5415972 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 1928053636 is about 43909.6075591664. The cubic root of 1928053636 is about 1244.6283920745.

The spelling of 1928053636 in words is "one billion, nine hundred twenty-eight million, fifty-three thousand, six hundred thirty-six".