1945881932 has 12 divisors (see below), whose sum is σ = 3405932376. Its totient is φ = 972758400.

The previous prime is 1945881913. The next prime is 1945881947. The reversal of 1945881932 is 2391885491.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20069 + ... + 65532.

It is an arithmetic number, because the mean of its divisors is an integer number (283827698).

Almost surely, 2^1945881932 is an apocalyptic number.

It is an amenable number.

1945881932 is a deficient number, since it is larger than the sum of its proper divisors (1460050444).

1945881932 is a wasteful number, since it uses less digits than its factorization.

1945881932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91288 (or 91286 counting only the distinct ones).

The product of its digits is 622080, while the sum is 50.

The square root of 1945881932 is about 44112.1517498297. The cubic root of 1945881932 is about 1248.4528981306.

The spelling of 1945881932 in words is "one billion, nine hundred forty-five million, eight hundred eighty-one thousand, nine hundred thirty-two".