1930380 has 24 divisors (see below), whose sum is σ = 5405232. Its totient is φ = 514752.

The previous prime is 1930373. The next prime is 1930391. The reversal of 1930380 is 830391.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1930380.

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 7 ways as a sum of consecutive naturals, for example, 16027 + ... + 16146.

It is an arithmetic number, because the mean of its divisors is an integer number (225218).

2^1930380 is an apocalyptic number.

1930380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1930380 is an abundant number, since it is smaller than the sum of its proper divisors (3474852).

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

1930380 is a wasteful number, since it uses less digits than its factorization.

1930380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32185 (or 32183 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1930380 is about 1389.3811572063. The cubic root of 1930380 is about 124.5128774925.

The spelling of 1930380 in words is "one million, nine hundred thirty thousand, three hundred eighty".