1938193 has 6 divisors (see below), whose sum is σ = 1988342. Its totient is φ = 1889280.

The previous prime is 1938191. The next prime is 1938197. The reversal of 1938193 is 3918391.

It can be written as a sum of positive squares in 3 ways, for example, as 529 + 1937664 = 23^2 + 1392^2 .

It is not a de Polignac number, because 1938193 - 2¹ = 1938191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1938191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1105 + ... + 2257.

2^1938193 is an apocalyptic number.

It is an amenable number.

1938193 is a deficient number, since it is larger than the sum of its proper divisors (50149).

1938193 is an equidigital number, since it uses as much as digits as its factorization.

1938193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1194 counting only the distinct ones).

The product of its digits is 5832, while the sum is 34.

The square root of 1938193 is about 1392.1900014007. The cubic root of 1938193 is about 124.6806354116.

The spelling of 1938193 in words is "one million, nine hundred thirty-eight thousand, one hundred ninety-three".