1129650 has 48 divisors (see below), whose sum is σ = 2973024. Its totient is φ = 282880.

The previous prime is 1129643. The next prime is 1129663. The reversal of 1129650 is 569211.

It is a super-2 number, since 2×1129650² = 2552218245000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1129650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2329 + ... + 2771.

It is an arithmetic number, because the mean of its divisors is an integer number (61938).

2^1129650 is an apocalyptic number.

1129650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1129650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1486512).

1129650 is an abundant number, since it is smaller than the sum of its proper divisors (1843374).

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

1129650 is a wasteful number, since it uses less digits than its factorization.

1129650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 1129650 is about 1062.8499423719. The cubic root of 1129650 is about 104.1472888399.

The spelling of 1129650 in words is "one million, one hundred twenty-nine thousand, six hundred fifty".