1129879936 has 32 divisors (see below), whose sum is σ = 2252466000. Its totient is φ = 564555264.

The previous prime is 1129879903. The next prime is 1129879937. The reversal of 1129879936 is 6399789211.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129879937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324541 + ... + 328003.

Almost surely, 2^1129879936 is an apocalyptic number.

1129879936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1129879936 is a deficient number, since it is larger than the sum of its proper divisors (1122586064).

1129879936 is an equidigital number, since it uses as much as digits as its factorization.

1129879936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6026 (or 6014 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 55.

The square root of 1129879936 is about 33613.6867362091. The cubic root of 1129879936 is about 1041.5435462319.

The spelling of 1129879936 in words is "one billion, one hundred twenty-nine million, eight hundred seventy-nine thousand, nine hundred thirty-six".