1648938 has 16 divisors (see below), whose sum is σ = 3378816. Its totient is φ = 536160.

The previous prime is 1648919. The next prime is 1648943. The reversal of 1648938 is 8398461.

It is a junction number, because it is equal to n+sod(n) for n = 1648896 and 1648905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3106 + ... + 3597.

It is an arithmetic number, because the mean of its divisors is an integer number (211176).

2^1648938 is an apocalyptic number.

1648938 is an abundant number, since it is smaller than the sum of its proper divisors (1729878).

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

1648938 is a wasteful number, since it uses less digits than its factorization.

1648938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6749.

The product of its digits is 41472, while the sum is 39.

The square root of 1648938 is about 1284.1098083887. The cubic root of 1648938 is about 118.1412175041.

The spelling of 1648938 in words is "one million, six hundred forty-eight thousand, nine hundred thirty-eight".