1129824450 has 120 divisors (see below), whose sum is σ = 3240864000. Its totient is φ = 291535200.

The previous prime is 1129824433. The next prime is 1129824457. The reversal of 1129824450 is 544289211.

1129824450 is a `hidden beast` number, since 1 + 129 + 82 + 4 + 450 = 666.

It is not an unprimeable number, because it can be changed into a prime (1129824457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 121051 + ... + 130049.

It is an arithmetic number, because the mean of its divisors is an integer number (27007200).

Almost surely, 2^1129824450 is an apocalyptic number.

1129824450 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 1129824450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1620432000).

1129824450 is an abundant number, since it is smaller than the sum of its proper divisors (2111039550).

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

1129824450 is a wasteful number, since it uses less digits than its factorization.

1129824450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9054 (or 9040 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1129824450 is about 33612.8613777524. The cubic root of 1129824450 is about 1041.5264966236.

The spelling of 1129824450 in words is "one billion, one hundred twenty-nine million, eight hundred twenty-four thousand, four hundred fifty".