1945969752 has 16 divisors (see below), whose sum is σ = 4864924440. Its totient is φ = 648656576.

The previous prime is 1945969747. The next prime is 1945969769. The reversal of 1945969752 is 2579695491.

It is a junction number, because it is equal to n+sod(n) for n = 1945969692 and 1945969701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40541013 + ... + 40541060.

Almost surely, 2^1945969752 is an apocalyptic number.

1945969752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1945969752 is an abundant number, since it is smaller than the sum of its proper divisors (2918954688).

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

1945969752 is a wasteful number, since it uses less digits than its factorization.

1945969752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81082082 (or 81082078 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 57.

The square root of 1945969752 is about 44113.1471559217. The cubic root of 1945969752 is about 1248.4716792434.

The spelling of 1945969752 in words is "one billion, nine hundred forty-five million, nine hundred sixty-nine thousand, seven hundred fifty-two".