2445788920 has 32 divisors (see below), whose sum is σ = 5536800720. Its totient is φ = 972311040.

The previous prime is 2445788899. The next prime is 2445788923. The reversal of 2445788920 is 298875442.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445788923) 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 7 ways as a sum of consecutive naturals, for example, 181041 + ... + 194080.

Almost surely, 2^2445788920 is an apocalyptic number.

2445788920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2445788920 is an abundant number, since it is smaller than the sum of its proper divisors (3091011800).

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

2445788920 is a wasteful number, since it uses less digits than its factorization.

2445788920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375295 (or 375291 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 2445788920 is about 49454.9180567514. The cubic root of 2445788920 is about 1347.3269319918.

The spelling of 2445788920 in words is "two billion, four hundred forty-five million, seven hundred eighty-eight thousand, nine hundred twenty".