1945988352 has 324 divisors, whose sum is σ = 7124697216. Its totient is φ = 505128960.

The previous prime is 1945988339. The next prime is 1945988353. The reversal of 1945988352 is 2538895491.

1945988352 is a `hidden beast` number, since 19 + 4 + 598 + 8 + 35 + 2 = 666.

It is a super-2 number, since 2×1945988352² = 7573741332239351808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945988353) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 1241073 + ... + 1242639.

Almost surely, 2^1945988352 is an apocalyptic number.

1945988352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1945988352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3562348608).

1945988352 is an abundant number, since it is smaller than the sum of its proper divisors (5178708864).

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

1945988352 is a wasteful number, since it uses less digits than its factorization.

1945988352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614 (or 1590 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The square root of 1945988352 is about 44113.3579769212. The cubic root of 1945988352 is about 1248.4756569516.

The spelling of 1945988352 in words is "one billion, nine hundred forty-five million, nine hundred eighty-eight thousand, three hundred fifty-two".