1928484 has 18 divisors (see below), whose sum is σ = 4874870. Its totient is φ = 642816.

The previous prime is 1928473. The next prime is 1928489. The reversal of 1928484 is 4848291.

It can be written as a sum of positive squares in only one way, i.e., 1272384 + 656100 = 1128^2 + 810^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 53569 = 1928484 / (1 + 9 + 2 + 8 + 4 + 8 + 4).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1928489) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 26749 + ... + 26820.

2^1928484 is an apocalyptic number.

It is an amenable number.

1928484 is an abundant number, since it is smaller than the sum of its proper divisors (2946386).

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

1928484 is a wasteful number, since it uses less digits than its factorization.

1928484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53579 (or 53574 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 1928484 is about 1388.6986714187. The cubic root of 1928484 is about 124.4720990364.

The spelling of 1928484 in words is "one million, nine hundred twenty-eight thousand, four hundred eighty-four".