1928330 has 8 divisors (see below), whose sum is σ = 3471012. Its totient is φ = 771328.

The previous prime is 1928323. The next prime is 1928351. The reversal of 1928330 is 338291.

It can be written as a sum of positive squares in 2 ways, for example, as 1555009 + 373321 = 1247^2 + 611^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1928330.

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 3 ways as a sum of consecutive naturals, for example, 96407 + ... + 96426.

2^1928330 is an apocalyptic number.

1928330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1928330 is a deficient number, since it is larger than the sum of its proper divisors (1542682).

1928330 is a wasteful number, since it uses less digits than its factorization.

1928330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192840.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1928330 is about 1388.6432227178. The cubic root of 1928330 is about 124.4687856888.

The spelling of 1928330 in words is "one million, nine hundred twenty-eight thousand, three hundred thirty".