1938238 has 16 divisors (see below), whose sum is σ = 3112560. Its totient is φ = 902016.

The previous prime is 1938227. The next prime is 1938239. The reversal of 1938238 is 8328391.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1938239) 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 7 ways as a sum of consecutive naturals, for example, 3445 + ... + 3967.

It is an arithmetic number, because the mean of its divisors is an integer number (194535).

2^1938238 is an apocalyptic number.

1938238 is a deficient number, since it is larger than the sum of its proper divisors (1174322).

1938238 is a wasteful number, since it uses less digits than its factorization.

1938238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651.

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

The square root of 1938238 is about 1392.2061628940. The cubic root of 1938238 is about 124.6816003285.

The spelling of 1938238 in words is "one million, nine hundred thirty-eight thousand, two hundred thirty-eight".