1129984 has 20 divisors (see below), whose sum is σ = 2258784. Its totient is φ = 564736.

The previous prime is 1129963. The next prime is 1129991. The reversal of 1129984 is 4899211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 592 + ... + 1615.

2^1129984 is an apocalyptic number.

It is an amenable number.

1129984 is a deficient number, since it is larger than the sum of its proper divisors (1128800).

1129984 is an frugal number, since it uses more digits than its factorization.

1129984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225 (or 2209 counting only the distinct ones).

The product of its digits is 5184, while the sum is 34.

The square root of 1129984 is about 1063.0070554799. The cubic root of 1129984 is about 104.1575521269.

The spelling of 1129984 in words is "one million, one hundred twenty-nine thousand, nine hundred eighty-four".