1894394 has 4 divisors (see below), whose sum is σ = 2841594. Its totient is φ = 947196.

The previous prime is 1894393. The next prime is 1894397. The reversal of 1894394 is 4934981.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1075369 + 819025 = 1037^2 + 905^2 .

It is not an unprimeable number, because it can be changed into a prime (1894393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473597 + ... + 473600.

2^1894394 is an apocalyptic number.

1894394 is a deficient number, since it is larger than the sum of its proper divisors (947200).

1894394 is an equidigital number, since it uses as much as digits as its factorization.

1894394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947199.

The product of its digits is 31104, while the sum is 38.

The square root of 1894394 is about 1376.3698630819. The cubic root of 1894394 is about 123.7342992698.

The spelling of 1894394 in words is "one million, eight hundred ninety-four thousand, three hundred ninety-four".