1648674 has 20 divisors (see below), whose sum is σ = 3694614. Its totient is φ = 549504.

The previous prime is 1648613. The next prime is 1648697. The reversal of 1648674 is 4768461.

1648674 is a `hidden beast` number, since 1 + 648 + 6 + 7 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1306449 + 342225 = 1143^2 + 585^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4927 + ... + 5250.

2^1648674 is an apocalyptic number.

1648674 is an abundant number, since it is smaller than the sum of its proper divisors (2045940).

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

1648674 is a wasteful number, since it uses less digits than its factorization.

1648674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10191 (or 10182 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 1648674 is about 1284.0070093267. The cubic root of 1648674 is about 118.1349122446.

The spelling of 1648674 in words is "one million, six hundred forty-eight thousand, six hundred seventy-four".