1930028720 has 20 divisors (see below), whose sum is σ = 4487316960. Its totient is φ = 772011456.

The previous prime is 1930028687. The next prime is 1930028731. The reversal of 1930028720 is 278200391.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12062600 + ... + 12062759.

It is an arithmetic number, because the mean of its divisors is an integer number (224365848).

Almost surely, 2^1930028720 is an apocalyptic number.

1930028720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1930028720 is an abundant number, since it is smaller than the sum of its proper divisors (2557288240).

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

1930028720 is a wasteful number, since it uses less digits than its factorization.

1930028720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24125372 (or 24125366 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1930028720 is about 43932.0921423053. The cubic root of 1930028720 is about 1245.0532431008.

The spelling of 1930028720 in words is "one billion, nine hundred thirty million, twenty-eight thousand, seven hundred twenty".