1938045 has 16 divisors (see below), whose sum is σ = 3168000. Its totient is φ = 1011264.

The previous prime is 1938011. The next prime is 1938067. The reversal of 1938045 is 5408391.

It is not a de Polignac number, because 1938045 - 2⁷ = 1937917 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 670 + ... + 2079.

It is an arithmetic number, because the mean of its divisors is an integer number (198000).

2^1938045 is an apocalyptic number.

1938045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1938045 is a deficient number, since it is larger than the sum of its proper divisors (1229955).

1938045 is a wasteful number, since it uses less digits than its factorization.

1938045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1938045 is about 1392.1368467216. The cubic root of 1938045 is about 124.6774618020.

The spelling of 1938045 in words is "one million, nine hundred thirty-eight thousand, forty-five".