2107785450 has 24 divisors (see below), whose sum is σ = 5227308288. Its totient is φ = 562076080.

The previous prime is 2107785419. The next prime is 2107785457. The reversal of 2107785450 is 545877012.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2107785399 and 2107785408.

It is not an unprimeable number, because it can be changed into a prime (2107785457) 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, 7025802 + ... + 7026101.

It is an arithmetic number, because the mean of its divisors is an integer number (217804512).

Almost surely, 2^2107785450 is an apocalyptic number.

2107785450 is an abundant number, since it is smaller than the sum of its proper divisors (3119522838).

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

2107785450 is a wasteful number, since it uses less digits than its factorization.

2107785450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14051918 (or 14051913 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 2107785450 is about 45910.6245873436. The cubic root of 2107785450 is about 1282.1597347862.

The spelling of 2107785450 in words is "two billion, one hundred seven million, seven hundred eighty-five thousand, four hundred fifty".