1945633294 has 12 divisors (see below), whose sum is σ = 3207883392. Its totient is φ = 884378660.

The previous prime is 1945633259. The next prime is 1945633297. The reversal of 1945633294 is 4923365491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945633297) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4019662 + ... + 4020145.

It is an arithmetic number, because the mean of its divisors is an integer number (267323616).

Almost surely, 2^1945633294 is an apocalyptic number.

1945633294 is a deficient number, since it is larger than the sum of its proper divisors (1262250098).

1945633294 is a wasteful number, since it uses less digits than its factorization.

1945633294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8039831 (or 8039820 counting only the distinct ones).

The product of its digits is 699840, while the sum is 46.

The square root of 1945633294 is about 44109.3334114221. Note that the first 3 decimals coincide. The cubic root of 1945633294 is about 1248.3997215480.

The spelling of 1945633294 in words is "one billion, nine hundred forty-five million, six hundred thirty-three thousand, two hundred ninety-four".