1129320 has 48 divisors (see below), whose sum is σ = 3671460. Its totient is φ = 301056.

The previous prime is 1129313. The next prime is 1129333. The reversal of 1129320 is 239211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1028196 + 101124 = 1014^2 + 318^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1129293 and 1129302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1209 + ... + 1928.

2^1129320 is an apocalyptic number.

1129320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1129320 is an abundant number, since it is smaller than the sum of its proper divisors (2542140).

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

1129320 is a wasteful number, since it uses less digits than its factorization.

1129320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154 (or 3147 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1129320 is about 1062.6946880454. The cubic root of 1129320 is about 104.1371464794.

The spelling of 1129320 in words is "one million, one hundred twenty-nine thousand, three hundred twenty".