1920503928 has 32 divisors (see below), whose sum is σ = 5487154560. Its totient is φ = 548715360.

The previous prime is 1920503903. The next prime is 1920503941. The reversal of 1920503928 is 8293050291.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5715618 + ... + 5715953.

It is an arithmetic number, because the mean of its divisors is an integer number (171473580).

Almost surely, 2^1920503928 is an apocalyptic number.

It is an amenable number.

1920503928 is an abundant number, since it is smaller than the sum of its proper divisors (3566650632).

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

1920503928 is a wasteful number, since it uses less digits than its factorization.

1920503928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11431587 (or 11431583 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 1920503928 is about 43823.5544884255. The cubic root of 1920503928 is about 1243.0017304713.

The spelling of 1920503928 in words is "one billion, nine hundred twenty million, five hundred three thousand, nine hundred twenty-eight".