1129430448 has 60 divisors (see below), whose sum is σ = 3163282408. Its totient is φ = 376185600.

The previous prime is 1129430443. The next prime is 1129430483. The reversal of 1129430448 is 8440349211.

It is a happy number.

It is a Cunningham number, because it is equal to 33607²-1.

It is a super-2 number, since 2×1129430448² = 2551226273738961408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1129430443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266748 + ... + 270948.

Almost surely, 2^1129430448 is an apocalyptic number.

1129430448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1129430448 is an abundant number, since it is smaller than the sum of its proper divisors (2033851960).

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

1129430448 is a wasteful number, since it uses less digits than its factorization.

1129430448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6082 (or 6073 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 1129430448 is about 33606.9999851221. Note that the first 4 decimals coincide. The cubic root of 1129430448 is about 1041.4054125520.

Adding to 1129430448 its reverse (8440349211), we get a palindrome (9569779659).

The spelling of 1129430448 in words is "one billion, one hundred twenty-nine million, four hundred thirty thousand, four hundred forty-eight".