1648342 has 16 divisors (see below), whose sum is σ = 2566800. Its totient is φ = 793440.

The previous prime is 1648291. The next prime is 1648349. The reversal of 1648342 is 2438461.

It is a d-powerful number, because it can be written as 1 + 6² + 4⁷ + 8 + 3¹⁰ + 4¹⁰ + 2¹⁹ .

It is a self number, because there is not a number n which added to its sum of digits gives 1648342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648349) 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 7 ways as a sum of consecutive naturals, for example, 7084 + ... + 7312.

It is an arithmetic number, because the mean of its divisors is an integer number (160425).

2^1648342 is an apocalyptic number.

1648342 is a deficient number, since it is larger than the sum of its proper divisors (918458).

1648342 is a wasteful number, since it uses less digits than its factorization.

1648342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351.

The product of its digits is 4608, while the sum is 28.

The square root of 1648342 is about 1283.8777200341. The cubic root of 1648342 is about 118.1269819475.

It can be divided in two parts, 164834 and 2, that added together give a square (164836 = 406²).

The spelling of 1648342 in words is "one million, six hundred forty-eight thousand, three hundred forty-two".