1940378 has 16 divisors (see below), whose sum is σ = 3214080. Its totient is φ = 871200.

The previous prime is 1940377. The next prime is 1940381. The reversal of 1940378 is 8730491.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1940371) 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, 1463 + ... + 2453.

It is an arithmetic number, because the mean of its divisors is an integer number (200880).

2^1940378 is an apocalyptic number.

1940378 is a deficient number, since it is larger than the sum of its proper divisors (1273702).

1940378 is a wasteful number, since it uses less digits than its factorization.

1940378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1940378 is about 1392.9745152012. The cubic root of 1940378 is about 124.7274702521.

The spelling of 1940378 in words is "one million, nine hundred forty thousand, three hundred seventy-eight".