1920328902 has 24 divisors (see below), whose sum is σ = 4304186640. Its totient is φ = 618036720.

The previous prime is 1920328889. The next prime is 1920328933. The reversal of 1920328902 is 2098230291.

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 11 ways as a sum of consecutive naturals, for example, 1838874 + ... + 1839917.

It is an arithmetic number, because the mean of its divisors is an integer number (179341110).

Almost surely, 2^1920328902 is an apocalyptic number.

1920328902 is an abundant number, since it is smaller than the sum of its proper divisors (2383857738).

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

1920328902 is a wasteful number, since it uses less digits than its factorization.

1920328902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678828 (or 3678825 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1920328902 is about 43821.5575031285. The cubic root of 1920328902 is about 1242.9639688146.

The spelling of 1920328902 in words is "one billion, nine hundred twenty million, three hundred twenty-eight thousand, nine hundred two".