1928340 has 48 divisors (see below), whose sum is σ = 6000960. Its totient is φ = 514080.

The previous prime is 1928323. The next prime is 1928351. The reversal of 1928340 is 438291.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 1246 + ... + 2325.

It is an arithmetic number, because the mean of its divisors is an integer number (125020).

2^1928340 is an apocalyptic number.

1928340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1928340 is an abundant number, since it is smaller than the sum of its proper divisors (4072620).

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

1928340 is a wasteful number, since it uses less digits than its factorization.

1928340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589 (or 3581 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1928340 is about 1388.6468233500. The cubic root of 1928340 is about 124.4690008466.

The spelling of 1928340 in words is "one million, nine hundred twenty-eight thousand, three hundred forty".