1948838 has 4 divisors (see below), whose sum is σ = 2923260. Its totient is φ = 974418.

The previous prime is 1948801. The next prime is 1948847. The reversal of 1948838 is 8388491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8388491 = 23 ⋅364717.

It is a junction number, because it is equal to n+sod(n) for n = 1948795 and 1948804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487208 + ... + 487211.

It is an arithmetic number, because the mean of its divisors is an integer number (730815).

2^1948838 is an apocalyptic number.

1948838 is a deficient number, since it is larger than the sum of its proper divisors (974422).

1948838 is an equidigital number, since it uses as much as digits as its factorization.

1948838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974421.

The product of its digits is 55296, while the sum is 41.

The square root of 1948838 is about 1396.0078796339. The cubic root of 1948838 is about 124.9084770047.

The spelling of 1948838 in words is "one million, nine hundred forty-eight thousand, eight hundred thirty-eight".