1930840320 has 144 divisors (see below), whose sum is σ = 6268473792. Its totient is φ = 506388480.

The previous prime is 1930840277. The next prime is 1930840337. The reversal of 1930840320 is 230480391.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230119 + ... + 238361.

It is an arithmetic number, because the mean of its divisors is an integer number (43531068).

Almost surely, 2^1930840320 is an apocalyptic number.

1930840320 is a gapful number since it is divisible by the number (10) 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 1930840320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3134236896).

1930840320 is an abundant number, since it is smaller than the sum of its proper divisors (4337633472).

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

1930840320 is an equidigital number, since it uses as much as digits as its factorization.

1930840320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8328 (or 8314 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1930840320 is about 43941.3281547110. The cubic root of 1930840320 is about 1245.2277385360.

The spelling of 1930840320 in words is "one billion, nine hundred thirty million, eight hundred forty thousand, three hundred twenty".