1151808450 has 96 divisors (see below), whose sum is σ = 3105009600. Its totient is φ = 280869120.

The previous prime is 1151808439. The next prime is 1151808479. The reversal of 1151808450 is 548081511.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 209841 + ... + 215259.

It is an arithmetic number, because the mean of its divisors is an integer number (32343850).

Almost surely, 2^1151808450 is an apocalyptic number.

1151808450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1151808450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1552504800).

1151808450 is an abundant number, since it is smaller than the sum of its proper divisors (1953201150).

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

1151808450 is a wasteful number, since it uses less digits than its factorization.

1151808450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5556 (or 5551 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 33.

The square root of 1151808450 is about 33938.3035816465. The cubic root of 1151808450 is about 1048.2384522622.

Adding to 1151808450 its reverse (548081511), we get a palindrome (1699889961).

The spelling of 1151808450 in words is "one billion, one hundred fifty-one million, eight hundred eight thousand, four hundred fifty".