1938283 has 4 divisors (see below), whose sum is σ = 1948320. Its totient is φ = 1928248.

The previous prime is 1938271. The next prime is 1938301. The reversal of 1938283 is 3828391.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1938283 is a prime.

It is a super-3 number, since 3×1938283³ = 21846044547648333561, which contains 333 as substring.

It is a Duffinian number.

1938283 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1938203) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 4723 + ... + 5116.

It is an arithmetic number, because the mean of its divisors is an integer number (487080).

2^1938283 is an apocalyptic number.

1938283 is a deficient number, since it is larger than the sum of its proper divisors (10037).

1938283 is an equidigital number, since it uses as much as digits as its factorization.

1938283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10036.

The product of its digits is 10368, while the sum is 34.

The square root of 1938283 is about 1392.2223241997. Note that the first 3 decimals coincide. The cubic root of 1938283 is about 124.6825652304.

The spelling of 1938283 in words is "one million, nine hundred thirty-eight thousand, two hundred eighty-three".