1945694 has 4 divisors (see below), whose sum is σ = 2918544. Its totient is φ = 972846.

The previous prime is 1945687. The next prime is 1945703. The reversal of 1945694 is 4965491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4965491 = 449 ⋅11059.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486422 + ... + 486425.

It is an arithmetic number, because the mean of its divisors is an integer number (729636).

2^1945694 is an apocalyptic number.

1945694 is a deficient number, since it is larger than the sum of its proper divisors (972850).

1945694 is an equidigital number, since it uses as much as digits as its factorization.

1945694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972849.

The product of its digits is 38880, while the sum is 38.

The square root of 1945694 is about 1394.8813569619. The cubic root of 1945694 is about 124.8412705249.

The spelling of 1945694 in words is "one million, nine hundred forty-five thousand, six hundred ninety-four".