2150454450 has 48 divisors (see below), whose sum is σ = 5446615680. Its totient is φ = 561251520.

The previous prime is 2150454433. The next prime is 2150454451. The reversal of 2150454450 is 544540512.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2150454451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145465 + ... + 159564.

It is an arithmetic number, because the mean of its divisors is an integer number (113471160).

Almost surely, 2^2150454450 is an apocalyptic number.

2150454450 is an abundant number, since it is smaller than the sum of its proper divisors (3296161230).

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

2150454450 is a wasteful number, since it uses less digits than its factorization.

2150454450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305091 (or 305086 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 2150454450 is about 46372.9926789290. The cubic root of 2150454450 is about 1290.7538109724.

Adding to 2150454450 its reverse (544540512), we get a palindrome (2694994962).

The spelling of 2150454450 in words is "two billion, one hundred fifty million, four hundred fifty-four thousand, four hundred fifty".