1928940 has 48 divisors (see below), whose sum is σ = 5818848. Its totient is φ = 474624.

The previous prime is 1928929. The next prime is 1928947. The reversal of 1928940 is 498291.

It is not an unprimeable number, because it can be changed into a prime (1928947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457 + ... + 2016.

It is an arithmetic number, because the mean of its divisors is an integer number (121226).

2^1928940 is an apocalyptic number.

1928940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1928940 is an abundant number, since it is smaller than the sum of its proper divisors (3889908).

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

1928940 is a wasteful number, since it uses less digits than its factorization.

1928940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498 (or 2496 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1928940 is about 1388.8628442002. The cubic root of 1928940 is about 124.4819089534.

The spelling of 1928940 in words is "one million, nine hundred twenty-eight thousand, nine hundred forty".