1129458432 has 72 divisors (see below), whose sum is σ = 3055412080. Its totient is φ = 370298880.

The previous prime is 1129458419. The next prime is 1129458437. The reversal of 1129458432 is 2348549211.

It is not an unprimeable number, because it can be changed into a prime (1129458437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34794 + ... + 58902.

Almost surely, 2^1129458432 is an apocalyptic number.

1129458432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1129458432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1527706040).

1129458432 is an abundant number, since it is smaller than the sum of its proper divisors (1925953648).

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

1129458432 is an equidigital number, since it uses as much as digits as its factorization.

1129458432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24189 (or 24175 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 1129458432 is about 33607.4163243770. The cubic root of 1129458432 is about 1041.4140134795.

The spelling of 1129458432 in words is "one billion, one hundred twenty-nine million, four hundred fifty-eight thousand, four hundred thirty-two".