1945983560 has 16 divisors (see below), whose sum is σ = 4378463100. Its totient is φ = 778393408.

The previous prime is 1945983547. The next prime is 1945983569. The reversal of 1945983560 is 653895491.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1933009156 + 12974404 = 43966^2 + 3602^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1945983499 and 1945983508.

It is not an unprimeable number, because it can be changed into a prime (1945983569) 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, 24324755 + ... + 24324834.

Almost surely, 2^1945983560 is an apocalyptic number.

1945983560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1945983560 is an abundant number, since it is smaller than the sum of its proper divisors (2432479540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1945983560 is a wasteful number, since it uses less digits than its factorization.

1945983560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48649600 (or 48649596 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 50.

The square root of 1945983560 is about 44113.3036622740. The cubic root of 1945983560 is about 1248.4746321595.

The spelling of 1945983560 in words is "one billion, nine hundred forty-five million, nine hundred eighty-three thousand, five hundred sixty".