1945688324 has 12 divisors (see below), whose sum is σ = 3445978704. Its totient is φ = 961122984.

The previous prime is 1945688323. The next prime is 1945688351. The reversal of 1945688324 is 4238865491.

It is not an unprimeable number, because it can be changed into a prime (1945688323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2929922 + ... + 2930585.

It is an arithmetic number, because the mean of its divisors is an integer number (287164892).

Almost surely, 2^1945688324 is an apocalyptic number.

It is an amenable number.

1945688324 is a deficient number, since it is larger than the sum of its proper divisors (1500290380).

1945688324 is a wasteful number, since it uses less digits than its factorization.

1945688324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5860594 (or 5860592 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 50.

The square root of 1945688324 is about 44109.9571978935. The cubic root of 1945688324 is about 1248.4114912872.

The spelling of 1945688324 in words is "one billion, nine hundred forty-five million, six hundred eighty-eight thousand, three hundred twenty-four".