1942378 has 8 divisors (see below), whose sum is σ = 2926980. Its totient is φ = 966720.

The previous prime is 1942363. The next prime is 1942379. The reversal of 1942378 is 8732491.

It can be written as a sum of positive squares in 2 ways, for example, as 1338649 + 603729 = 1157^2 + 777^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1942379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663 + ... + 2578.

2^1942378 is an apocalyptic number.

1942378 is a deficient number, since it is larger than the sum of its proper divisors (984602).

1942378 is a wasteful number, since it uses less digits than its factorization.

1942378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472.

The product of its digits is 12096, while the sum is 34.

The square root of 1942378 is about 1393.6922185332. The cubic root of 1942378 is about 124.7703088610.

The spelling of 1942378 in words is "one million, nine hundred forty-two thousand, three hundred seventy-eight".