1945394 has 8 divisors (see below), whose sum is σ = 3183408. Its totient is φ = 884260.

The previous prime is 1945393. The next prime is 1945399. The reversal of 1945394 is 4935491.

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 (1945393) 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 3 ways as a sum of consecutive naturals, for example, 44192 + ... + 44235.

It is an arithmetic number, because the mean of its divisors is an integer number (397926).

2^1945394 is an apocalyptic number.

1945394 is a deficient number, since it is larger than the sum of its proper divisors (1238014).

1945394 is a wasteful number, since it uses less digits than its factorization.

1945394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88440.

The product of its digits is 19440, while the sum is 35.

The square root of 1945394 is about 1394.7738167889. The cubic root of 1945394 is about 124.8348539102.

The spelling of 1945394 in words is "one million, nine hundred forty-five thousand, three hundred ninety-four".