1648413 has 24 divisors (see below), whose sum is σ = 2612792. Its totient is φ = 995328.

The previous prime is 1648391. The next prime is 1648417. The reversal of 1648413 is 3148461.

1648413 is a `hidden beast` number, since 1 + 648 + 4 + 13 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15129 + 1633284 = 123^2 + 1278^2 .

It is not a de Polignac number, because 1648413 - 2⁶ = 1648349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648417) 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 23 ways as a sum of consecutive naturals, for example, 8445 + ... + 8637.

2^1648413 is an apocalyptic number.

1648413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1648413 is a deficient number, since it is larger than the sum of its proper divisors (964379).

1648413 is a wasteful number, since it uses less digits than its factorization.

1648413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 282 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 1648413 is about 1283.9053703447. The cubic root of 1648413 is about 118.1286779740.

The spelling of 1648413 in words is "one million, six hundred forty-eight thousand, four hundred thirteen".