1945446912 has 120 divisors (see below), whose sum is σ = 5796236160. Its totient is φ = 627517440.

The previous prime is 1945446883. The next prime is 1945446913. The reversal of 1945446912 is 2196445491.

1945446912 is a `hidden beast` number, since 1 + 94 + 544 + 6 + 9 + 12 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945446913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136039 + ... + 149657.

It is an arithmetic number, because the mean of its divisors is an integer number (48301968).

Almost surely, 2^1945446912 is an apocalyptic number.

1945446912 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 1945446912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2898118080).

1945446912 is an abundant number, since it is smaller than the sum of its proper divisors (3850789248).

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

1945446912 is a wasteful number, since it uses less digits than its factorization.

1945446912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13674 (or 13655 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 1945446912 is about 44107.2206333612. The cubic root of 1945446912 is about 1248.3598567788.

It can be divided in two parts, 19454 and 46912, that added together give a palindrome (66366).

The spelling of 1945446912 in words is "one billion, nine hundred forty-five million, four hundred forty-six thousand, nine hundred twelve".