1938023 has 4 divisors (see below), whose sum is σ = 1990440. Its totient is φ = 1885608.

The previous prime is 1938011. The next prime is 1938067. The reversal of 1938023 is 3208391.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3208391 = 383 ⋅8377.

It is a cyclic number.

It is not a de Polignac number, because 1938023 - 2⁴ = 1938007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1937983 and 1938001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1938073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26153 + ... + 26226.

It is an arithmetic number, because the mean of its divisors is an integer number (497610).

2^1938023 is an apocalyptic number.

1938023 is a deficient number, since it is larger than the sum of its proper divisors (52417).

1938023 is an equidigital number, since it uses as much as digits as its factorization.

1938023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52416.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1938023 is about 1392.1289451771. The cubic root of 1938023 is about 124.6769900355.

The spelling of 1938023 in words is "one million, nine hundred thirty-eight thousand, twenty-three".