1784228485 has 12 divisors (see below), whose sum is σ = 2318442372. Its totient is φ = 1317583488.

The previous prime is 1784228483. The next prime is 1784228491. The reversal of 1784228485 is 5848224871.

It can be written as a sum of positive squares in 6 ways, for example, as 1013721921 + 770506564 = 31839^2 + 27758^2 .

It is not a de Polignac number, because 1784228485 - 2¹ = 1784228483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1784228483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1054912 + ... + 1056601.

It is an arithmetic number, because the mean of its divisors is an integer number (193203531).

Almost surely, 2^1784228485 is an apocalyptic number.

It is an amenable number.

1784228485 is a deficient number, since it is larger than the sum of its proper divisors (534213887).

1784228485 is a wasteful number, since it uses less digits than its factorization.

1784228485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111544 (or 2111531 counting only the distinct ones).

The product of its digits is 1146880, while the sum is 49.

The square root of 1784228485 is about 42240.1288468679. The cubic root of 1784228485 is about 1212.8771740475.

The spelling of 1784228485 in words is "one billion, seven hundred eighty-four million, two hundred twenty-eight thousand, four hundred eighty-five".