1930203912 has 128 divisors (see below), whose sum is σ = 5986713600. Its totient is φ = 504983808.

The previous prime is 1930203887. The next prime is 1930203949. The reversal of 1930203912 is 2193020391.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1930203912.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273889 + ... + 280847.

It is an arithmetic number, because the mean of its divisors is an integer number (46771200).

Almost surely, 2^1930203912 is an apocalyptic number.

1930203912 is a gapful number since it is divisible by the number (12) 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 1930203912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2993356800).

1930203912 is an abundant number, since it is smaller than the sum of its proper divisors (4056509688).

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

1930203912 is a wasteful number, since it uses less digits than its factorization.

1930203912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7115 (or 7111 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 1930203912 is about 43934.0859925411. The cubic root of 1930203912 is about 1245.0909138300.

The spelling of 1930203912 in words is "one billion, nine hundred thirty million, two hundred three thousand, nine hundred twelve".