2109458450 has 24 divisors (see below), whose sum is σ = 4280284080. Its totient is φ = 767075600.

The previous prime is 2109458423. The next prime is 2109458453. The reversal of 2109458450 is 548549012.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2109458453) 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 11 ways as a sum of consecutive naturals, for example, 1917140 + ... + 1918239.

It is an arithmetic number, because the mean of its divisors is an integer number (178345170).

Almost surely, 2^2109458450 is an apocalyptic number.

2109458450 is an abundant number, since it is smaller than the sum of its proper divisors (2170825630).

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

2109458450 is a wasteful number, since it uses less digits than its factorization.

2109458450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3835402 (or 3835397 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 2109458450 is about 45928.8411567285. The cubic root of 2109458450 is about 1282.4988720799.

It can be divided in two parts, 2109458 and 450, that multiplied together give a square (949256100 = 30810²).

The spelling of 2109458450 in words is "two billion, one hundred nine million, four hundred fifty-eight thousand, four hundred fifty".