1129684938 has 64 divisors (see below), whose sum is σ = 2416656000. Its totient is φ = 351039744.

The previous prime is 1129684861. The next prime is 1129684967. The reversal of 1129684938 is 8394869211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2845356 + ... + 2845752.

It is an arithmetic number, because the mean of its divisors is an integer number (37760250).

Almost surely, 2^1129684938 is an apocalyptic number.

1129684938 is an abundant number, since it is smaller than the sum of its proper divisors (1286971062).

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

1129684938 is a wasteful number, since it uses less digits than its factorization.

1129684938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759.

The product of its digits is 746496, while the sum is 51.

The square root of 1129684938 is about 33610.7860366282. The cubic root of 1129684938 is about 1041.4836252359.

The spelling of 1129684938 in words is "one billion, one hundred twenty-nine million, six hundred eighty-four thousand, nine hundred thirty-eight".