1945433056 has 48 divisors (see below), whose sum is σ = 4380463584. Its totient is φ = 833140224.

The previous prime is 1945433053. The next prime is 1945433057. The reversal of 1945433056 is 6503345491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945433051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430746 + ... + 435238.

It is an arithmetic number, because the mean of its divisors is an integer number (91259658).

Almost surely, 2^1945433056 is an apocalyptic number.

1945433056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1945433056 is an abundant number, since it is smaller than the sum of its proper divisors (2435030528).

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

1945433056 is a wasteful number, since it uses less digits than its factorization.

1945433056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443 (or 6435 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 1945433056 is about 44107.0635612937. The cubic root of 1945433056 is about 1248.3568930527.

The spelling of 1945433056 in words is "one billion, nine hundred forty-five million, four hundred thirty-three thousand, fifty-six".