1648338 has 8 divisors (see below), whose sum is σ = 3296688. Its totient is φ = 549444.

The previous prime is 1648291. The next prime is 1648349. The reversal of 1648338 is 8338461.

It is a sphenic number, since it is the product of 3 distinct primes.

1648338 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1648299 and 1648308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137356 + ... + 137367.

It is an arithmetic number, because the mean of its divisors is an integer number (412086).

2^1648338 is an apocalyptic number.

1648338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1648338 is a wasteful number, since it uses less digits than its factorization.

1648338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274728.

The product of its digits is 13824, while the sum is 33.

The square root of 1648338 is about 1283.8761622524. The cubic root of 1648338 is about 118.1268863952.

The spelling of 1648338 in words is "one million, six hundred forty-eight thousand, three hundred thirty-eight".