1938195 has 48 divisors (see below), whose sum is σ = 4021920. Its totient is φ = 883008.

The previous prime is 1938191. The next prime is 1938197. The reversal of 1938195 is 5918391.

It is a happy number.

It is not a de Polignac number, because 1938195 - 2² = 1938191 is a prime.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6469 + ... + 6761.

It is an arithmetic number, because the mean of its divisors is an integer number (83790).

2^1938195 is an apocalyptic number.

1938195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1938195 is an abundant number, since it is smaller than the sum of its proper divisors (2083725).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1938195 is a wasteful number, since it uses less digits than its factorization.

1938195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 308 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 1938195 is about 1392.1907196932. The cubic root of 1938195 is about 124.6806782971.

The spelling of 1938195 in words is "one million, nine hundred thirty-eight thousand, one hundred ninety-five".