2133609450 has 144 divisors (see below), whose sum is σ = 6180881184. Its totient is φ = 485654400.

The previous prime is 2133609437. The next prime is 2133609451. The reversal of 2133609450 is 549063312.

It is not an unprimeable number, because it can be changed into a prime (2133609451) 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 71 ways as a sum of consecutive naturals, for example, 2432412 + ... + 2433288.

It is an arithmetic number, because the mean of its divisors is an integer number (42922786).

Almost surely, 2^2133609450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2133609450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3090440592).

2133609450 is an abundant number, since it is smaller than the sum of its proper divisors (4047271734).

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

2133609450 is a wasteful number, since it uses less digits than its factorization.

2133609450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 2133609450 is about 46191.0104890551. The cubic root of 2133609450 is about 1287.3747161846.

The spelling of 2133609450 in words is "two billion, one hundred thirty-three million, six hundred nine thousand, four hundred fifty".